The ILED-COB-840 RGB is a Chip-on-Board (COB) RGB LED strip light designed for dynamic colour-mixing applications where a continuous, dotless line of full-spectrum colour is required. Unlike traditional SMD RGB strips that show individual red, green and blue light points, the COB process packs 840 LED positions per metre — 280 red, 280 green and 280 blue — into a 10 mm wide flexible PCB, producing a uniform colour line with no visible dots even at close mounting distances.
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Model: ILED-COB-840 RGB
LED density: 840 LEDs/metre (280 red + 280 green + 280 blue)
Power consumption: 15 W/m
Lumen output: 1,000 lm/m (white mode, mixed RGB)
Beam angle: 180°
Colour: RGB (full colour-mixing via PWM control)
CRI: Not applicable — RGB colour-mixing strips do not carry a CRI rating
Input voltage: 24VDC
Dimmable: Yes (brightness and colour intensity dimmable)
PCB width: 10 mm
Cut length: 25 mm (markings on PCB)
Standard roll length: 5 metres
Custom lengths: Available on request
IP ratings: IP42 (standard), IP65, IP67, IP68 (waterproof variants)
Working temperature: -20°C to +50°C
Cable: 15 cm input cable (custom cable lengths available)
Adhesive: 3M yellow tape standard; 3M red tape optional
Type: Static RGB (non-addressable — full strip changes colour together)
Certifications: SAA, CE, RoHS
Average lifetime: 50,000 hours
RGB colour-mixing technology
The ILED-COB-840 RGB produces its full colour range by independently pulsing the red, green and blue LED arrays at varying duty cycles via PWM (pulse-width modulation) control. By adjusting the relative intensity of each primary colour, the strip can produce any colour in the RGB spectrum — from warm white (dominant red+green) through cool white (dominant blue) to saturated red, green, blue and every hue in between. The 280 red, 280 green and 280 blue COB positions per metre provide sufficient primary colour density for smooth, uniform colour blending with no visible colour banding.
Unlike addressable (WS2812B, DMX-controlled) RGB strips where each LED can display a different colour simultaneously, the COB-840 RGB is a static RGB strip — the entire strip changes colour as one unit. This makes it ideal for applications where a single ambient colour or colour gradient is desired across the full length, such as cove wash lighting, architectural accent strips and retail display backlighting. For multi-zone or individually addressable colour effects, select an addressable RGB strip instead.
IP ratings and installation
The ILED-COB-840 RGB is offered in four IP rating variants. The standard IP42 version is suitable for dry indoor environments such as ceiling coves, under-shelf lighting and interior architectural features. The IP65 variant adds a silicone coating that protects against dust and water jets, suitable for covered outdoor use such as soffit lighting and sheltered facades. The IP67 and IP68 variants provide progressive submersion protection — IP67 for temporary immersion and IP68 for continuous submersion — for use in fountains, water features and harsh outdoor environments.
The strip is supplied on 5 metre rolls with a 15 cm input cable pre-attached. It adheres to surfaces using 3M yellow adhesive tape (standard) or 3M red adhesive tape (optional, higher temperature resistance). The flexible PCB can be bent to follow curved contours and cut at the marked 25 mm intervals to achieve custom lengths. Custom roll lengths and cable configurations are available on request. Always verify the cut markings on the PCB before cutting — cutting between marks will disconnect the circuit. The 24VDC input requires a 24VDC RGB controller and power supply — confirm controller compatibility (PWM channel count, current rating) at order time.
Controller and dimming requirements
The ILED-COB-840 RGB requires a 24VDC RGB controller with three independent PWM channels (one each for red, green and blue) to produce full colour-mixing. The controller must be rated for the total current draw of your installation — at 15 W/m, a 5 metre roll draws approximately 75W (about 3.1A at 24VDC). Always add a 20% current margin when sizing your power supply. The strip is dimmable — both overall brightness and individual colour channel intensity can be adjusted via the controller. Confirm your controller supports the COB-840 RGB’s current draw and PWM frequency at order time.
