{"title":"Blue LED string lights","description":"\u003cp\u003eChoose blue LED string lights first by their power supply and their protection rating: mains power for a fixed installation near a socket, batteries, rechargeable or solar for a balcony without an electrical point. Then measure the run to be covered, and fix the lights to a taut support so they do not sag under their own weight.\u003c\/p\u003e\n\n\u003ch2 id=\"lumiere-bleue\"\u003eWhat kind of light do blue LED string lights give?\u003c\/h2\u003e\n\u003cp\u003eThe blue of an LED is a cool, crisp light that stands out clearly on a pale wall as well as on foliage. It remains decorative: it highlights a line, a railing or a frame rather than lighting a room. For reading or moving around, rely on the main lighting, which is well covered by \u003ca href=\"https:\/\/designix.fr\/collections\/luminaire\"\u003eour full range of light fittings\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eA cool light that stands out\u003c\/h3\u003e\n\u003cp\u003eOn a white or beige wall, blue creates a sharp contrast and the light points read one by one, even from a few metres away. On dark wood, the effect is softer and the line appears less marked: it is a good support for a headboard or a shelf. On foliage, blue contrasts with the green and brings out the shape of the branches.\u003c\/p\u003e\n\u003ch3\u003eBlue white red mode, for celebrations\u003c\/h3\u003e\n\u003cp\u003eSome models alternate several shades on the same wire, with lighting sequences. Blue alone gives a calm line; blue white red is reserved for Christmas trees, parties and festive decorations, which you will find in \u003ca href=\"\/collections\/guirlandes-led\"\u003eall LED string lights\u003c\/a\u003e. Check that the main colour stated matches what you are looking for.\u003c\/p\u003e\n\n\u003ch2 id=\"ou-installer\"\u003eWhere to install blue LED string lights: living room, bedroom, balcony or garden?\u003c\/h2\u003e\n\u003cp\u003eBlue string lights go where they are seen but not touched: high on a wall, around a window, on a balcony railing, a pergola or a tree branch. Indoors, they dress a headboard or a shelf. Outdoors, the choice depends on the model's protection rating and on whether a socket is available.\u003c\/p\u003e\n\u003ch3\u003eIn the living room, bedroom or a child's room\u003c\/h3\u003e\n\u003cp\u003eA window frame and a headboard are the two simplest spots: the lights follow a straight line, the cable slips behind the curtain or along the upright. Plan for a socket nearby and hide the cable rather than letting it cross a walkway. A shelf or the top of a piece of furniture also works, provided the lights stay out of reach of younger children.\u003c\/p\u003e\n\u003ch3\u003eOn a balcony, a terrace or in the garden\u003c\/h3\u003e\n\u003cp\u003eOn a railing or a guardrail, a \u003ca href=\"\/collections\/guirlandes-lumineuses\"\u003eclassic string light\u003c\/a\u003e is stretched from one post to the other and follows the line of the balustrade. On a pergola or a branch, aim for height: high enough not to be caught as you pass. A sheltered spot calls for a model protected against fine rain, such as \u003ca href=\"\/collections\/guirlandes-led-ip44\"\u003eIP44 string lights for a covered balcony\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 id=\"alimentation\"\u003eBattery, rechargeable, solar or 220V LED string lights: which to choose?\u003c\/h2\u003e\n\u003cp\u003eThe choice depends on whether a socket is available and on how long the lights will be on. Mains 220V suits a fixed, prolonged installation; battery or rechargeable versions can be moved and used where no socket exists; solar removes the cable but requires a panel exposed to daylight.\u003c\/p\u003e\n\u003ch3\u003eMains or low voltage: for a fixed installation\u003c\/h3\u003e\n\u003cp\u003eOn mains power, the lights stay on for a long time without intervention, provided a socket is close by. Measure the cable length to that socket before fixing anything: \u003ca href=\"\/collections\/guirlandes-led-220v\"\u003e220V mains LED string lights\u003c\/a\u003e need this reference point. In low voltage, the transformer comes with the wire and must stay dry, under a canopy. \u003ca href=\"\/collections\/guirlandes-led-24v\"\u003e24V low-voltage models\u003c\/a\u003e suit long runs.\u003c\/p\u003e\n\u003ch3\u003eBattery, rechargeable and solar: to do without a socket\u003c\/h3\u003e\n\u003cp\u003eBattery string lights can be moved and placed on a balcony without an electrical point. A rechargeable version is charged by cable, which avoids opening a compartment: see the \u003ca href=\"\/collections\/guirlandes-led-rechargeables\"\u003estring lights rechargeable by USB cable\u003c\/a\u003e. Solar removes the cable, but its panel must see daylight; on short days, running time is reduced. \u003ca href=\"\/collections\/guirlandes-led-solaires\"\u003ecable-free solar string lights\u003c\/a\u003e are made for a pergola or an open facade.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ccaption\u003eWhich power supply for which use?\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003cth\u003eWhere it suits\u003c\/th\u003e\n\u003cth\u003eWhat to check\u003c\/th\u003e\n\u003cth\u003eLimitation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMains 220V\u003c\/td\u003e\n\u003ctd\u003eFixed installation, prolonged use\u003c\/td\u003e\n\u003ctd\u003eCable length to the socket, sealing of connections\u003c\/td\u003e\n\u003ctd\u003eDepends on a nearby socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow voltage 24V\u003c\/td\u003e\n\u003ctd\u003eLong runs, outdoors\u003c\/td\u003e\n\u003ctd\u003ePresence of the transformer, protection rating\u003c\/td\u003e\n\u003ctd\u003eTransformer must be kept dry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003ePlace without a socket, temporary installation\u003c\/td\u003e\n\u003ctd\u003eType and number of batteries, access to the compartment\u003c\/td\u003e\n\u003ctd\u003eMust be switched on, batteries to change\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRechargeable\u003c\/td\u003e\n\u003ctd\u003eBalcony, table, decoration moved around\u003c\/td\u003e\n\u003ctd\u003eStated battery life, charging cable supplied\u003c\/td\u003e\n\u003ctd\u003eRecharging required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar\u003c\/td\u003e\n\u003ctd\u003eGarden, pergola, facade without cable\u003c\/td\u003e\n\u003ctd\u003ePanel exposure to daylight, standby mode\u003c\/td\u003e\n\u003ctd\u003eReduced running time on short days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 id=\"indice-ip\"\u003eWhich IP protection rating to choose for outdoor string lights?\u003c\/h2\u003e\n\u003cp\u003eThe IP rating gives resistance to water and dust. IP44 withstands rain under a canopy or on a covered balcony; IP65 withstands splashes and direct exposure. A model without protection remains reserved for dry indoors, with a socket kept away from moisture.\u003c\/p\u003e\n\u003ch3\u003eIP44: covered balcony and window edge\u003c\/h3\u003e\n\u003cp\u003eAn IP44 model accepts fine rain and a sheltered spot: under a canopy, against a window, behind a guardrail. It withstands neither direct jets nor immersion, so no cleaning with a hose. \u003ca href=\"\/collections\/guirlandes-led-ip44\"\u003emodels protected against fine rain\u003c\/a\u003e cover this common need on a city balcony.\u003c\/p\u003e\n\u003ch3\u003eIP65 and 24V: facade, pergola and garden\u003c\/h3\u003e\n\u003cp\u003eFor a facade, a pergola or an exposed branch, aim for IP65: rain and splashes are fine, immersion is still excluded. In low voltage, the transformer is placed under shelter, never on the ground in the grass. \u003ca href=\"\/collections\/guirlandes-led-ip65\"\u003eIP65 string lights for outdoors\u003c\/a\u003e are designed for this continuous exposure, including in winter, provided the connections stay out of water.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ccaption\u003eProtection rating and permitted exposure\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRating\u003c\/th\u003e\n\u003cth\u003ePermitted exposure\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003cth\u003eTo avoid\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP44\u003c\/td\u003e\n\u003ctd\u003eFine rain, sheltered spot\u003c\/td\u003e\n\u003ctd\u003eCovered balcony, canopy, window edge\u003c\/td\u003e\n\u003ctd\u003eDirect jets and immersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003ctd\u003eRain and splashes\u003c\/td\u003e\n\u003ctd\u003eFacade, pergola, garden\u003c\/td\u003e\n\u003ctd\u003eImmersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo IP rating\u003c\/td\u003e\n\u003ctd\u003eDry indoors only\u003c\/td\u003e\n\u003ctd\u003eShelf, headboard, furniture\u003c\/td\u003e\n\u003ctd\u003eOutdoors and damp rooms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 id=\"longueur\"\u003eWhat length of string lights to plan before buying?\u003c\/h2\u003e\n\u003cp\u003eFirst measure the run to be covered, then the distance between the last point and the socket or fixing point. String lights can be laid in a straight line, in zigzags or in hanging loops, and zigzags use more length than a straight line. Better to allow a margin than to come up short.\u003c\/p\u003e\n\u003ch3\u003eMeasure the run and the distance to the socket\u003c\/h3\u003e\n\u003cp\u003eTake a tape measure and follow the actual path, including fixing points, not the width of the wall. Add the distance to the socket, then a margin for the return and the fastening. This step avoids the classic case: string lights that are too short and stop in the middle of the railing. For a mains installation, see how to \u003ca href=\"\/collections\/guirlandes-led-220v\"\u003einstall string lights near a socket\u003c\/a\u003e without a cable across the walkway.\u003c\/p\u003e\n\u003ch3\u003eStraight line, zigzag or hanging loops: what it changes\u003c\/h3\u003e\n\u003cp\u003eA taut line uses exactly the measured length. A zigzag between two points, or vertical hanging loops, require clearly more wire for the same distance: allow roughly double, depending on the size of the loops. This is the typical case of a pergola or a railing decorated with swags.\u003c\/p\u003e\n\n\u003ch2 id=\"accrocher\"\u003eHow to hang string lights without drilling and without damaging them?\u003c\/h2\u003e\n\u003cp\u003eAdhesive hooks, suction cups, gutter clips and small ties on a guardrail are enough for most installations. A steel wire is stretched between two points when the span is long, then the lights are fixed to it, so they do not sag under their own weight. The support must be clean and dry.\u003c\/p\u003e\n\u003ch3\u003eOn a wall, a window or a piece of furniture\u003c\/h3\u003e\n\u003cp\u003eAn adhesive hook holds on a smooth, degreased wall, a suction cup on a pane, a cable clip on a shelf. Clean and dry the surface before sticking, otherwise the adhesive gives way within a few days. The cable is fixed along the upright or behind the curtain. For the other lighting points in the home, our page on \u003ca href=\"\/collections\/luminaire\"\u003echoosing a light fitting for the home\u003c\/a\u003e gives the same installation guidelines.\u003c\/p\u003e\n\u003ch3\u003eOn a balcony, a railing or a tree\u003c\/h3\u003e\n\u003cp\u003eOn a guardrail, a gutter clip or a flexible tie does the job without drilling into the railing. Over a long span, stretch a steel wire between two fixed points and hang the lights on it: the wire carries, the lights decorate. On a living tree, wrap without nails or screws, letting the trunk breathe. Lightweight \u003ca href=\"\/collections\/guirlandes-led\"\u003eLED string lights\u003c\/a\u003e are well suited to these quick fixings.\u003c\/p\u003e\n\n\u003ch2 id=\"combiner\"\u003eBlue LED string lights and room lighting: how to combine them?\u003c\/h2\u003e\n\u003cp\u003eBlue string lights remain ambient lighting: they replace neither a ceiling light, nor a wall light, nor a chandelier. They are switched on in addition, on their own power supply, to highlight a wall or a headboard. For reading or moving around, the main lighting must remain separate and available.\u003c\/p\u003e\n\u003ch3\u003eWith a ceiling light, a wall light or a chandelier\u003c\/h3\u003e\n\u003cp\u003eThe ceiling light provides general light, the string lights add a coloured line on a wall. A wall light illuminates a corridor or a bedside, the string lights do not take its place. A chandelier above a table keeps its role as a visual presence. Each source stays on its own switch: that is what allows the blue to be switched on without losing the useful light. Browse our \u003ca href=\"\/collections\/luminaire\"\u003eselection of decorative light fittings\u003c\/a\u003e to strike this balance.\u003c\/p\u003e\n\u003ch3\u003eBlue, warm white, multicolour: avoid mixing\u003c\/h3\u003e\n\u003cp\u003eOne strong colour per area holds up better. Blue works on white and on light wood, away from another blue of a different shade that would create two neighbouring, discordant glows. If the room already has \u003ca href=\"\/collections\/guirlandes-lumineuses\"\u003estring lights\u003c\/a\u003e in another tone, keep them in another room or on another wall. Multicolour is reserved for festive decorations.\u003c\/p\u003e\n\n\u003ch2 id=\"entretien-securite\"\u003eMaintenance and safety of blue LED string lights: what to check?\u003c\/h2\u003e\n\u003cp\u003eSwitch off the power before any handling, check the cable and the transformer, and keep sockets and connections out of water. A dry cloth is enough for dust; avoid solvents on the cable as well as on the LEDs. Damaged string lights are replaced rather than repaired.\u003c\/p\u003e\n\u003ch3\u003eCleaning and storing without damage\u003c\/h3\u003e\n\u003cp\u003eUnplug, then run a dry cloth over the wire and the light points. No alcohol or detergent on the cable: the sheath becomes brittle. When storing, coil loosely, without tight folds or knots, in a box away from moisture. This is what extends the useful life of \u003ca href=\"\/collections\/guirlandes-lumineuses\"\u003estring lights\u003c\/a\u003e from one season to the next.\u003c\/p\u003e\n\u003ch3\u003eWhat should raise alarm before switching back on\u003c\/h3\u003e\n\u003cp\u003eA nicked cable, a damp connection, a cracked transformer, a socket that heats up: in these cases, replace the string lights, do not improvise. Two sets of string lights are connected to each other only if the models are designed for it, with the same connector and the same voltage; otherwise each keeps its own power supply. An outdoor connection is never made with adhesive tape. For lasting exposure, prefer \u003ca href=\"\/collections\/guirlandes-led-ip65\"\u003estring lights resistant to splashes\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUnsure about the model or the length?\u003c\/strong\u003e Designix customer service answers before purchase. Secure payment, tracked delivery, returns, and a single contact for your installation questions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSecure payment\u003c\/li\u003e\n\u003cli\u003eTracked delivery\u003c\/li\u003e\n\u003cli\u003eReturns\u003c\/li\u003e\n\u003cli\u003eDesignix customer service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions about blue LED string lights\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat does blue white red mode change on LED string lights?\u003c\/summary\u003e\n\u003cp\u003eBlue white red mode alternates several shades on the same wire, often with lighting sequences. Blue alone gives a calmer, more readable line on a pale wall; multicolour is reserved for parties, Christmas trees and evenings. Check that the main colour stated matches what you are looking for.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDo you need a socket for balcony string lights?\u003c\/summary\u003e\n\u003cp\u003eNot always. Battery, rechargeable or solar string lights are installed without a socket, which solves the case of a balcony with no outdoor electrical point. A 220V or 24V low-voltage string light, on the other hand, requires a nearby power supply, with a socket protected from moisture and a cable that does not cross a walkway.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long do battery LED string lights stay on?\u003c\/summary\u003e\n\u003cp\u003eNo duration can be guaranteed: it depends on the number of LEDs, the mode chosen, the quality of the batteries and the temperature. A steady mode lasts longer than a twinkling mode. Fresh branded batteries, taken out of their packaging at the time of installation, give the best result.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow does a cuttable LED strip work?\u003c\/summary\u003e\n\u003cp\u003eA cuttable strip has cut marks printed at regular intervals: cut only on these marks, with clean scissors, otherwise a section stops working. String lights on a wire, however, cannot be cut: their length is fixed and is chosen at purchase, by measuring the run to be covered.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDo blue LED string lights give enough light for a room?\u003c\/summary\u003e\n\u003cp\u003eNo, not as general lighting. Blue string lights are for ambience: they highlight a line, a railing or a headboard. For reading or moving around, you need a ceiling light, a wall light or a chandelier, switched on separately. The string lights add to this lighting, they do not replace it.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"CollectionPage\",\"name\":\"Blue LED string lights: choosing your blue light and where to place it\",\"description\":\"Blue LED string lights: length, protection rating, mains or battery, fixing and blue light combinations indoors and outdoors.\",\"url\":\"https:\/\/designix.fr\/collections\/guirlandes-led-coloris-bleu\",\"isPartOf\":{\"@type\":\"WebSite\",\"name\":\"Designix\",\"url\":\"https:\/\/designix.fr\"},\"speakable\":{\"@type\":\"SpeakableSpecification\",\"cssSelector\":[\"h1\",\"h2\"]}},{\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/designix.fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Lighting\",\"item\":\"https:\/\/designix.fr\/collections\/luminaire\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"String lights\",\"item\":\"https:\/\/designix.fr\/collections\/guirlandes\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Blue LED string lights: choosing your blue light and where to place it\",\"item\":\"https:\/\/designix.fr\/collections\/guirlandes-led-coloris-bleu\"}]},{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does blue white red mode change on LED string lights?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Blue white red mode alternates several shades on the same wire, often with lighting sequences. Blue alone gives a calmer, more readable line on a pale wall; multicolour is reserved for parties, Christmas trees and evenings. Check that the main colour stated matches what you are looking for.\"}},{\"@type\":\"Question\",\"name\":\"Can blue LED string lights be left outside all year?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It depends on the protection rating and the location. An IP65 model withstands rain and splashes; an IP44 must stay under a canopy or on a covered balcony. Outside these conditions, the string lights are brought indoors. The transformer and sockets always stay sheltered from water.\"}},{\"@type\":\"Question\",\"name\":\"Do you need a socket for balcony string lights?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not always. Battery, rechargeable or solar string lights are installed without a socket, which solves the case of a balcony with no outdoor electrical point. A 220V or 24V low-voltage string light, on the other hand, requires a nearby power supply, with a socket protected from moisture and a cable that does not cross a walkway.\"}},{\"@type\":\"Question\",\"name\":\"How long do battery LED string lights stay on?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No duration can be guaranteed: it depends on the number of LEDs, the mode chosen, the quality of the batteries and the temperature. A steady mode lasts longer than a twinkling mode. Fresh branded batteries, taken out of their packaging at the time of installation, give the best result.\"}},{\"@type\":\"Question\",\"name\":\"How does a cuttable LED strip work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A cuttable strip has cut marks printed at regular intervals: cut only on these marks, with clean scissors, otherwise a section stops working. String lights on a wire, however, cannot be cut: their length is fixed and is chosen at purchase, by measuring the run to be covered.\"}},{\"@type\":\"Question\",\"name\":\"Do blue LED string lights give enough light for a room?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, not as general lighting. Blue string lights are for ambience: they highlight a line, a railing or a headboard. For reading or moving around, you need a ceiling light, a wall light or a chandelier, switched on separately. The string lights add to this lighting, they do not replace it.\"}},{\"@type\":\"Question\",\"name\":\"How do you connect two sets of string lights to each other?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Only if both models are designed for it and share the same connector and the same voltage. In doubt, each string light keeps its own power supply. Never improvise a connection with adhesive tape outdoors: moisture gets in and the contact deteriorates.\"}}]}]\u003c\/script\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/8598\/2228\/collections\/designix-entete-guirlandes-led-coloris-bleu-v1.jpg?v=1792503103","url":"https:\/\/designix-lighting.com\/collections\/blue-led-string-lights.oembed","provider":"Designix","version":"1.0","type":"link"}