RGBW LED strips
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An RGBW LED strip is chosen in this order: the white you want for everyday use, the voltage according to the length to be covered, then the protection rating for the room. The strip brings colours and a dedicated white together on one support, which avoids the tinted white of an RGB strip alone.
Contents
- What light an RGBW strip produces
- Choosing between 12V, 24V and 220V
- Calculating the length you need
- IP rating and damp rooms
- Installation, cutting and accessories
- Strip or ceiling light in a living room
- Matching the strip to a chandelier and wall lights
- Mistakes to avoid
- Ordering from Designix
What is an RGBW LED strip and what light does it give?
An RGBW LED strip is a flexible tape that combines three colour channels, red, green and blue, and a dedicated white channel. You therefore get coloured tints for atmosphere and a white you can use every day, without the approximate mix of an RGB strip alone.
RGBW LED strips: white and colour on one strip
The white channel is what changes the use: switched on alone, it really lights a room, whereas a white made from the three colours often turns blue or green. The quality of the result depends on the size of the diodes and their density. Strips with 5050 diodes, wide and bright, and densities of 60 LEDs per metre are the usual market references. For a tinted accent light rather than a multicoloured one, also compare RGB LED strips.
RGB, RGBW or RGBWW LED strip: what are the differences?
RGB builds its colours from three channels, but its white remains reconstructed. RGBW adds a true white, enough to move around the room. RGBWW adds two whites, one warm and one cool, which lets you set the light temperature between the two. If you are looking for a cosy ambient white, look at 2700K LED strips, or something more neutral with 3000K LED strips.
12V, 24V or 220V RGBW LED strip: which voltage should you choose?
12V suits short lengths, 24V limits voltage drop over long strips, and 220V connects directly to the mains without a transformer. First decide the length to be lit and where you will house the power supply, because this choice drives everything else.
| Voltage | Power supply needed | Where to use it | Good to know |
|---|---|---|---|
| 12V | 12V transformer, housed close to the strip | Small linear runs, furniture, niches | Brightness drops over long lengths |
| 24V | 24V transformer, often more compact at equal power | Long linear runs, ceilings, several rooms | Copes better with the distance between supply and strip |
| 220V | No transformer, mains connection | Long lengths, facades, terraces | Less flexible strip, connection must be done carefully |
12V or 24V RGBW LED strip: according to the distance to cover
On a piece of furniture or a niche, a 12V setup makes do with a discreet power supply placed right next to it. As soon as the strip gets longer, 24V keeps a more even brightness right to its end. The choice therefore comes down to the distance between the power supply and the last section. Our 24V LED strips meet this case.
220V RGBW LED strip: connecting directly to the mains
220V removes the transformer, which frees up space behind a piece of furniture or in a ceiling recess and simplifies a very long linear run. On the other hand, the strip is stiffer and the mains connection must be done properly, with the power off. See the 220V LED strips if this space constraint is your sticking point.
How much RGBW LED strip should you allow for a room?
The length is calculated from the actual run to be covered, skirting boards, furniture and ceiling included, then cut at the marks provided for that purpose. It is better to measure room by room than to order on an impression, because strips cannot be extended once cut.
10 m or 15 m RGBW LED strip: dressing a living area
First measure the skirting boards to be highlighted, the length of the low furniture and the perimeter of the ceiling if you are aiming for indirect lighting. Add them up, then round up to absorb corners and offcuts. A living area with a single long run often makes do with around ten metres, while a living area with several zones goes up a notch.
20 m RGBW LED strip: several rooms or one long run
Beyond a single space, it is better to think in sections with their own power supply rather than running one continuous strip. This avoids losing brightness at the end of the line and makes cutting easier. To put the whole thing together, browse all our LED strips and our lighting collection.
Waterproof IP65 RGBW LED strip: for the bathroom, terrace or pool?
The IP rating indicates what the strip can withstand: an IP20 strip stays indoors, in dry conditions, while an IP65 strip resists water spray and dust. In a bathroom, under a canopy or at the edge of a pool, this protection is what you should look at before colour or power.
| Rating | Room or area | What it protects | Limit to know |
|---|---|---|---|
| IP20 | Living room, bedroom, kitchen, inside furniture | Bare strip, designed for dry interiors | Must not be exposed to moisture or spray |
| IP65 | Bathroom, covered terrace, poolside | Water spray and dust | Connectors and power supply must stay sheltered |
IP65 RGBW LED strip: what it really protects
A high rating protects the strip itself, not the complete installation. Joints, connectors and the transformer remain the weak points: house them in a closed box, away from water run-off. For a wet room, go for waterproof LED strips.
Which RGBW LED strip for a pool or a terrace edge?
A pool edge calls for a strip that withstands spray, installed out of reach of swimmers and never submerged without specific equipment. Pool LED strips are designed for this context, provided you take as much care over protecting the connections as over the strip itself.
How do you install and cut an RGBW LED strip?
A cuttable strip is cut only at the marks printed on the tape, where the circuit is designed to be sectioned. Allow for a power supply, a controller and, if the strip is long, power injection at each end to keep the light even.
Cuttable LED strip: how does it work?
The printed marks show the only permitted cutting points, never an interval chosen at random. The section you keep keeps working, the offcut does not. To continue, you start again from a new power feed. This constraint is what pushes you to measure before cutting.
Surface, power supply and controller: what do you need?
Clean and degrease the surface, then stick the strip following the direction shown on the tape. An aluminium profile diffuses the light, protects it and dissipates heat. For the electrical side, allow for the transformer suited to the chosen voltage, a controller to drive colour and brightness, and a strip that connects to the mains if you want to do without a transformer.
RGBW LED strip or LED ceiling light: how do you light a living room?
An LED ceiling light lights the whole room from a single point, an RGBW LED strip lights a linear run and plays with colour. In a living room, the two complement each other: the ceiling light for general light, the strip for the wall, the furniture or the indirect ceiling.
LED ceiling lighting: what a strip adds
A strip placed in a ceiling recess or behind a piece of furniture creates a depth that direct light does not give. It draws a volume, extends a bookcase, highlights a splashback. For circulation light, complete it with lighting for the whole home chosen in the same white family.
Modern LED ceiling light or RGBW LED strip: what effect in a living area?
The ceiling light carries the useful light, the one that lets you read and move around. The strip remains an accent, never the main source of a large room. Many interiors combine the two, keeping colour for atmospheric moments. Find both families in the Designix LED strips and the rest of the catalogue.
How do you match an RGBW LED strip with a chandelier or LED wall lights?
The simplest approach is to keep the same white family across all sources: a warm white with a warm white, a neutral white with a neutral white. The RGBW strip then serves as a coloured accent, while the chandelier or wall light carries the useful light, with no competition between the two.
Combining a strip with an LED wall light in a living room
The wall light illuminates at working height, near an armchair or a headboard. Place the strip on another plane, skirting board, niche or mantelpiece, so the two sources do not fight over the same wall. This separation makes the room more readable and each source more useful.
LED chandelier and strip: avoiding two different whites
A warm white on one side and a cool white on the other are immediately visible, even at low brightness. Set the reference white temperature for the room, then set the white channel of the strip within that family. The rest of the lighting catalogue follows the same logic.
What mistakes should you avoid with an RGBW LED strip?
The most common mistakes are sticking the tape onto a dirty surface, cutting it outside the marks and running too great a length from a single power supply. Also check the IP protection before installing the strip in a damp room, because no setting can make up for that choice.
Choosing the white temperature before the number of colours
Colour can be set and changed at will, white cannot: it is white that lights the room every day. So first decide whether the room calls for a warm white or a more neutral white, then look at the coloured effects. A strip whose white does not suit you will remain uncomfortable, whatever its tints.
Powering a long strip from a single end
On a long run, a single power supply at the start of the strip leaves the end dimmer and duller. Allow for injection at each end, or cut the run into sections powered separately. For outdoor use, cross-check this point with the strips protected against moisture.
Ordering an RGBW LED strip from Designix
Summarise your four criteria in order: the white you want, the voltage according to length, the measured length and the protection rating for the room. Once these answers are set, the choice comes down to a few strips. Payment is secure, delivery is tracked, returns are possible and the Designix customer service team answers questions about compatibility between strip, power supply and controller.
Browse the lighting catalogue to complete your lighting, then open the LED strips hub and note the reference matching your voltage and your room.
Frequently asked questions
Cuttable LED strip: how does it work?
A cuttable strip is cut only at the printed marks, where the circuit is designed to be sectioned, never between two marks at random. The cut part keeps working, but the remaining offcut is no longer connected: you start again from a new power feed for the rest.
What do RGB, RGBW and RGBWW mean?
RGB means three channels, red, green and blue, which build colours but not a true white. RGBW adds a dedicated white channel, clearer for lighting. RGBWW adds two whites, one warm and one cool, which lets you set the light temperature.
Should you choose a 12V or 24V RGBW LED strip?
12V suits short strips, where the distance between the power supply and the strip stays small. 24V copes better with distance and length, with less loss at the end of the strip. For a long run or several sections, go for 24V instead.
Does a 220V RGBW LED strip need a transformer?
No, a 220V strip connects directly to the mains, without a transformer, which simplifies installation on a long run. It remains less flexible and less slim than a 12V or 24V strip, and the electrical connection must be done properly, with the power off.
Which RGBW LED strip should you choose for outdoors?
For outdoors, aim for a waterproof IP65 strip, which withstands water spray and dust, and house the connections in a sheltered box. An IP20 strip remains reserved for dry rooms, even behind a window or under a canopy.
Can an RGBW LED strip replace an LED ceiling light?
A strip diffuses a linear light, less directed than a ceiling light: it lights a zone or creates an atmosphere, rarely a whole room on its own. Most often, it complements an LED ceiling light or wall lights rather than replacing them.
