{"title":"B22 light bulbs","description":"\u003cp\u003eCheck the base first: a 22 mm two-pin socket requires a B22 bulb, which is fitted by pushing and turning a quarter turn. Next come the colour temperature, around 2700 K for a living room and 4000 K for a worktop, and the lumen output suited to the surface.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"#culot-b22\"\u003eWhat is a B22 bayonet bulb\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#existent\"\u003eDo bayonet bulbs still exist\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#choisir\"\u003eChoosing by room and use\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#types\"\u003eThe four types of bulbs\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#temperature\"\u003eCool white or warm white\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#parallele\"\u003eWiring three bulbs in parallel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#yeux\"\u003eThe best light for the eyes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"culot-b22\"\u003eWhat is a B22 bayonet bulb?\u003c\/h2\u003e\n\u003cp\u003eA B22 bulb is a bulb whose base measures 22 mm in diameter and is secured by two side pins, by pushing and turning a quarter turn. It is found on ceiling lights, wall lights and older fixtures still fitted with a bayonet socket. Before ordering, browse \u003ca href=\"https:\/\/designix.fr\/collections\/luminaire\"\u003eall our light fixtures\u003c\/a\u003e: the socket appears in the detail views.\u003c\/p\u003e\n\n\u003ch3\u003eB22 bayonet bulbs: what the base changes when fitting\u003c\/h3\u003e\n\u003cp\u003eThe movement is mechanical: align the two pins with the grooves in the socket, push in slightly, then turn. No thread, so no risk of cross-threading; on the other hand, a poorly seated bulb holds without electrical contact. The model runs on 220-240 V mains, like \u003ca href=\"\/collections\/ampoules-culot-e27\"\u003eE27 screw-base bulbs\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eB22d or B22 bulb: what is the difference on the socket?\u003c\/h3\u003e\n\u003cp\u003eBoth fit a 22 mm pin socket. The B22d has an offset pin and a contact pad that prevent insertion into a socket designed for another fitting. If the bulb refuses to turn, do not force it: compare the shape of the pins with those of the old bulb.\u003c\/p\u003e\n\n\u003ch2 id=\"existent\"\u003eDo bayonet bulbs still exist?\u003c\/h2\u003e\n\u003cp\u003eYes. The B22 base is still manufactured, especially in LED and filament, because fixtures with bayonet sockets are still in use. Keeping the fitting makes real sense: a 1980s metal and glass ceiling light has nothing to envy a new model. Browse \u003ca href=\"\/collections\/ampoules\"\u003ethe full bulb range\u003c\/a\u003e to see the technologies available.\u003c\/p\u003e\n\n\u003ch3\u003eB22 LED bulbs: replacing your bulb without changing the fixture\u003c\/h3\u003e\n\u003cp\u003eThis is the most common reason to buy. A B22 LED uses little power, heats less than a halogen and comes in clear glass, \u003ca href=\"\/collections\/ampoules-coloris-ambre\"\u003eamber glass\u003c\/a\u003e or an opal version. The free bulb distributions announced in recent years do not concern this shop: every model is offered for sale, with no special procedure.\u003c\/p\u003e\n\n\u003ch3\u003eWhere to find a B22 bayonet bulb in store or online\u003c\/h3\u003e\n\u003cp\u003eThe B22 base is less common in large stores than E27, often reduced to a few basic references. Online, colours, shapes and colour temperatures can really be compared, particularly among \u003ca href=\"\/collections\/ampoules-led-1\"\u003eLED bulbs\u003c\/a\u003e. Look for the B22 mention on the packaging, not just in the photo.\u003c\/p\u003e\n\n\u003ch2 id=\"choisir\"\u003eB22 LED bulbs: how to choose by room and use?\u003c\/h2\u003e\n\u003cp\u003eFirst choose the light: 2700 K for a warm living room, 3000 K for a work room, 4000 K for a kitchen or office. Then the output, in lumens, suited to the room, then the shape: globe for a ceiling light with a diffuser, visible filament for an open pendant. For a living room, \u003ca href=\"\/collections\/ampoules-pour-salon\"\u003eliving room bulbs\u003c\/a\u003e favour a warm white and a glass that diffuses.\u003c\/p\u003e\n\n\u003ch3\u003eB22 100 W bulbs and B22 25 W bulbs: reading power differently\u003c\/h3\u003e\n\u003cp\u003eThe figure in watts refers either to consumption or to the maximum power allowed by the socket, often printed on the lampholder. This collection contains only one model, with a B22 base: the product page is therefore the only useful reference for the output and the limit engraved on the fixture.\u003c\/p\u003e\n\n\u003ch3\u003eMulticolour B22 bulbs and coloured B22 bulbs: what effect in the room?\u003c\/h3\u003e\n\u003cp\u003ePink, blue, amber or white: the tint of the glass changes the result even before the colour temperature. Amber glass warms, \u003ca href=\"\/collections\/ampoules-coloris-noir\"\u003eblack glass\u003c\/a\u003e stays discreet when switched off and filters the light. Multicolour models serve atmosphere and decor; for everyday use, a warm white remains more comfortable.\u003c\/p\u003e\n\n\u003ch2 id=\"types\"\u003eWhat are the 4 types of bulbs?\u003c\/h2\u003e\n\u003cp\u003eThere are four families: the type of base (B22, E27, E14, GU10), the shape of the glass (globe, candle, spot), the technology (LED, filament, halogen) and the light rendering, given in kelvin. These four criteria combine: the same B22 bulb exists in several shapes and several temperatures.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ccaption\u003eIdentifying the base before ordering\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBase\u003c\/th\u003e\n\u003cth\u003eFitting\u003c\/th\u003e\n\u003cth\u003eCommon fixture\u003c\/th\u003e\n\u003cth\u003eTo check\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eB22\u003c\/td\u003e\n\u003ctd\u003eTwo pins, 22 mm, quarter turn\u003c\/td\u003e\n\u003ctd\u003eCeiling light, wall light, older fixture\u003c\/td\u003e\n\u003ctd\u003eBayonet socket and pin shape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE27\u003c\/td\u003e\n\u003ctd\u003eThread, 27 mm, screw-in\u003c\/td\u003e\n\u003ctd\u003ePendant, bedside lamp, ceiling light\u003c\/td\u003e\n\u003ctd\u003eSocket diameter and maximum power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE14\u003c\/td\u003e\n\u003ctd\u003eThread, 14 mm, screw-in\u003c\/td\u003e\n\u003ctd\u003eWall light, small fixture, accent lamp\u003c\/td\u003e\n\u003ctd\u003eSpace available in the fitting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGU10\u003c\/td\u003e\n\u003ctd\u003eTwo short pins, 230 V\u003c\/td\u003e\n\u003ctd\u003eRecessed adjustable spot\u003c\/td\u003e\n\u003ctd\u003eSocket spacing and voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG9\u003c\/td\u003e\n\u003ctd\u003eTwo loops, 230 V\u003c\/td\u003e\n\u003ctd\u003eSmall decorative fixture\u003c\/td\u003e\n\u003ctd\u003eVery compact fitting shape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGU5.3\u003c\/td\u003e\n\u003ctd\u003eTwo fine pins, 12 V\u003c\/td\u003e\n\u003ctd\u003eLow-voltage spot\u003c\/td\u003e\n\u003ctd\u003ePresence of a 12 V transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eBayonet, screw, pins: recognising the main base types\u003c\/h3\u003e\n\u003cp\u003eThree movements are enough: a quarter turn for bayonet, screw-in for E27 and \u003ca href=\"\/collections\/ampoules-e14\"\u003eE14 small-thread bulbs\u003c\/a\u003e, push in two pins for \u003ca href=\"\/collections\/ampoules-gu10\"\u003eGU10 spots\u003c\/a\u003e at 230 V and \u003ca href=\"\/collections\/ampoules-gu5\"\u003eGU5 low-voltage bulbs\u003c\/a\u003e at 12 V. Small decorative formats are gathered in \u003ca href=\"\/collections\/autres-culots-ampoules-g4-g9-etc-1\"\u003eother G4 and G9 bases\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eB22 LED, halogen and filament bulbs: what really changes in use\u003c\/h3\u003e\n\u003cp\u003eLED comes on at full power immediately and heats little. Filament reproduces the look of an incandescent bulb, with visible filaments and a softer light: see \u003ca href=\"\/collections\/ampoules-a-filament\"\u003efilament bulbs\u003c\/a\u003e and \u003ca href=\"\/collections\/ampoules-retro\"\u003eretro-style bulbs\u003c\/a\u003e. Halogen, still fitted in some fixtures, uses more power and heats the socket.\u003c\/p\u003e\n\n\u003ch2 id=\"temperature\"\u003eWhat gives the whitest light, cool or warm?\u003c\/h2\u003e\n\u003cp\u003eCool white, around 4000 K and above, appears whiter and sharper than warm white, around 2700 to 3000 K, which leans yellow. The tint of the glass matters too: amber glass warms the light, clear glass lets it through as it is.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ccaption\u003eColour temperature: which light for which room\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature\u003c\/th\u003e\n\u003cth\u003eVisual impression\u003c\/th\u003e\n\u003cth\u003eRoom or use\u003c\/th\u003e\n\u003cth\u003eType of B22 bulb\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2700 K\u003c\/td\u003e\n\u003ctd\u003eWarm white, soft yellow\u003c\/td\u003e\n\u003ctd\u003eLiving room, bedroom, dining table\u003c\/td\u003e\n\u003ctd\u003eLED or filament, clear or amber glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3000 K\u003c\/td\u003e\n\u003ctd\u003eNeutral warm white\u003c\/td\u003e\n\u003ctd\u003eKitchen, hallway, bathroom\u003c\/td\u003e\n\u003ctd\u003eLED with diffusing glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4000 K\u003c\/td\u003e\n\u003ctd\u003eCrisp white, slightly cool\u003c\/td\u003e\n\u003ctd\u003eOffice, worktop, workshop\u003c\/td\u003e\n\u003ctd\u003eLED, often more directional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5000 to 6500 K\u003c\/td\u003e\n\u003ctd\u003eVery cool white, bluish\u003c\/td\u003e\n\u003ctd\u003eGarage, cellar, utility room\u003c\/td\u003e\n\u003ctd\u003eLED, strong diffusion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat does the value 4000 K mean for a bulb?\u003c\/h3\u003e\n\u003cp\u003e4000 K describes the tint of the light, not its power. At equal output, a 4000 K bulb makes whites crisper and colours cooler than a \u003ca href=\"\/collections\/ampoules-2700k\"\u003e2700 K light\u003c\/a\u003e. It is the usual reference for an office or a worktop, where details are easier to distinguish.\u003c\/p\u003e\n\n\u003ch3\u003eHow to know the colour of the bulb: glass, kelvin and rendering\u003c\/h3\u003e\n\u003cp\u003eThe packaging gives the kelvin; the glass modulates that figure. Opal glass diffuses and softens, a \u003ca href=\"\/collections\/ampoules-en-verre\"\u003eglass bulb\u003c\/a\u003e lets the source be seen and casts sharp shadows. For a living room, a \u003ca href=\"\/collections\/ampoules-3000k\"\u003ewarm white 3000 K\u003c\/a\u003e behind a diffuser remains the safest compromise.\u003c\/p\u003e\n\n\u003ch2 id=\"parallele\"\u003eHow to wire 3 bulbs in parallel?\u003c\/h2\u003e\n\u003cp\u003eThree sockets are wired in parallel: the live wire arrives at the first socket and continues to the next, the neutral follows the same path. Each bulb then receives 230 V and lights independently of the others. Switch off the power at the breaker before working.\u003c\/p\u003e\n\n\u003ch3\u003eLive, neutral and looping: the principle of parallel wiring\u003c\/h3\u003e\n\u003cp\u003eLooping means running a wire from the terminal block of the first socket to the second, then from the second to the third. Each socket receives two wires, live and neutral, and nothing else. Earth only concerns class I fixtures, fitted with a terminal block intended for it.\u003c\/p\u003e\n\n\u003ch3\u003eThree bulbs on the same circuit: what to check before connecting\u003c\/h3\u003e\n\u003cp\u003eCheck the conductor cross-section, the condition of the connections and the combined power of the three bulbs, which stays low with LED. If the circuit is old, without earth or conduit, an electrician decides. \u003ca href=\"\/collections\/ampoules-led-220v\"\u003e220 V LED bulbs\u003c\/a\u003e connect directly, without a transformer.\u003c\/p\u003e\n\n\u003ch2 id=\"yeux\"\u003eWhat is the best light for the eyes?\u003c\/h2\u003e\n\u003cp\u003eThe most comfortable light is indirect, without flicker, with an output suited to the task: avoid sharp differences between rooms and keep a warm white in the evening. On a B22 bulb, favour a diffusing glass rather than a very directional bare source.\u003c\/p\u003e\n\n\u003ch3\u003eAvoiding glare: diffuser, shade and orientation\u003c\/h3\u003e\n\u003cp\u003eA bulb visible at eye level causes glare, whatever its power. An opaque shade facing downwards, opal glass or a wall light aimed at the wall solve the problem. In a bedroom, aim for a \u003ca href=\"\/collections\/ampoules-pour-chambre\"\u003ebedroom bulb\u003c\/a\u003e in warm white, behind a diffuser.\u003c\/p\u003e\n\n\u003ch3\u003eLED, filament or dimmer: what changes visual comfort\u003c\/h3\u003e\n\u003cp\u003eThe flicker perceived often comes from a dimmer poorly matched to the LED. \u003ca href=\"\/collections\/ampoules-led-a-variateur\"\u003eDimmer-compatible bulbs\u003c\/a\u003e are stated as such on the packaging; without that mention, lowering the voltage can produce flicker. A visible filament in an open pendant gives a soft light, provided you do not look at it directly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe step that avoids an ordering mistake:\u003c\/strong\u003e photograph your socket, note the mention engraved on the lampholder (B22, voltage, maximum power) and compare it with the product page before confirming. The collection has only one model with a B22 base: the product page remains the reference to consult.\u003c\/p\u003e\n\n\u003ch2 id=\"faq\"\u003eFrequently asked questions about B22 bulbs\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the LED equivalent of a 400 W halogen lamp?\u003c\/summary\u003e\n\u003cp\u003eWe no longer convert watts into watts: we compare lumens. A 400 W halogen delivers several thousand lumens, which are found on a B22 LED bulb with an equivalent output, at a much lower consumption. Also check the maximum power allowed by the fixture socket.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan a B22 LED bulb be put in an old bayonet socket?\u003c\/summary\u003e\n\u003cp\u003eYes, if the socket is in good condition, without play or signs of heat, and if the bulb is 220-240 V. The B22 and B22d bases look alike: check the shape of the pins and their alignment before turning. An LED heats less than a halogen, which relieves old sockets.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan a B22 bulb replace an E27 bulb?\u003c\/summary\u003e\n\u003cp\u003eNo, the two bases are not interchangeable: the B22 is secured by pins on 22 mm, the E27 screws on 27 mm. You must choose a bulb with the right base or replace the fixture socket. An adapter exists, but it adds bulk inside the shade.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eMulticolour B22 bulbs: what are they for?\u003c\/summary\u003e\n\u003cp\u003eColoured or multicolour B22 bulbs are used to create an atmosphere, mark out a zone or light a decor without white light. They are reserved for mood uses rather than the main lighting of a work room. Their colour rendering remains more limited than a classic warm white.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhich bulb gives the best light?\u003c\/summary\u003e\n\u003cp\u003eThe one whose lumen output matches the room, with a glass that diffuses the light instead of concentrating it. In a ceiling light with a diffuser, a B22 LED globe bulb is enough; in an open pendant, a visible filament does the same job with more character. Orientation matters as much as power.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"CollectionPage\",\"name\":\"B22 bayonet bulbs: the guide to choosing the right bulb\",\"description\":\"B22 bayonet bulbs: understanding the base, choosing the colour temperature and LED power suited to each room, with our reference points.\",\"url\":\"https:\/\/designix.fr\/collections\/ampoules-b22\",\"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\":\"Bulbs\",\"item\":\"https:\/\/designix.fr\/collections\/ampoules\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"B22 bayonet bulbs: the guide to choosing the right bulb\",\"item\":\"https:\/\/designix.fr\/collections\/ampoules-b22\"}]},{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the LED equivalent of a 400 W halogen lamp?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"We no longer convert watts into watts: we compare lumens. A 400 W halogen delivers several thousand lumens, which are found on a B22 LED bulb with an equivalent output, at a much lower consumption. Also check the maximum power allowed by the fixture socket.\"}},{\"@type\":\"Question\",\"name\":\"B22 100 W bulbs: should you trust the stated power?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The figure 100 W refers either to consumption or to the maximum power allowed by the socket, often printed on the lampholder. In LED, actual consumption is much lower for a comparable output. What matters remains the lumen output and the limit indicated on the fixture.\"}},{\"@type\":\"Question\",\"name\":\"Can a B22 LED bulb be put in an old bayonet socket?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, if the socket is in good condition, without play or signs of heat, and if the bulb is 220-240 V. The B22 and B22d bases look alike: check the shape of the pins and their alignment before turning. An LED heats less than a halogen, which relieves old sockets.\"}},{\"@type\":\"Question\",\"name\":\"Multicolour B22 bulbs: what are they for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Coloured or multicolour B22 bulbs are used to create an atmosphere, mark out a zone or light a decor without white light. They are reserved for mood uses rather than the main lighting of a work room. Their colour rendering remains more limited than a classic warm white.\"}},{\"@type\":\"Question\",\"name\":\"Which bulb gives the best light?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The one whose lumen output matches the room, with a glass that diffuses the light instead of concentrating it. In a ceiling light with a diffuser, a B22 LED globe bulb is enough; in an open pendant, a visible filament does the same job with more character. Orientation matters as much as power.\"}},{\"@type\":\"Question\",\"name\":\"Can a B22 bulb replace an E27 bulb?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, the two bases are not interchangeable: the B22 is secured by pins on 22 mm, the E27 screws on 27 mm. You must choose a bulb with the right base or replace the fixture socket. An adapter exists, but it adds bulk inside the shade.\"}},{\"@type\":\"Question\",\"name\":\"B22 25 W bulbs: what can this power light?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"25 W corresponds to a modest consumption, suited to an accent lamp, a wall light or a hallway rather than a large room. In LED, this power gives a higher output than an equivalent incandescent bulb. Always compare the lumen output before choosing between two models.\"}}]}]\u003c\/script\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/8598\/2228\/collections\/designix-entete-ampoules-b22-v1.jpg?v=1793022109","url":"https:\/\/designix-lighting.com\/collections\/b22-bulbs.oembed","provider":"Designix","version":"1.0","type":"link"}