COB LEDs

COB (Chip on Board) LEDs are compact LED modules with a bright light output. They consist of a small square or circular substrate which houses multiple LED chips/dies. These are covered with a phosphor coating. The most common colour of COB LED is white, however there a few more colours available as the technology develops.

How do they work?

COB LEDs have a base substrate, made of aluminium or ceramic, on which the LED dies are mounted. The actual LEDs provide a blue light. The number of LED dies and their typical luminous flux determines the "brightness" of the COB LED.

The layer of phosphor, which is an orangey-yellow colour, sits on top of the LED dies. The phosphor converts the blue LED dies into a white light. The type of phosphor creates different colour temperatures.

What is colour temperature?

Colour temperature describes the warmth or coolness of the LED light output. "Warm" COB LEDs offer a yellow-orange light output while "Cool" COB LEDs tend to be a bluer white. Colour temperature is measured in Kelvins with the symbol "K".

What are the advantages of COB LEDs?

• Higher LED density than traditional LED mounting process

• No need for multiple soldering - just one package

• Bright light output

Uses for COB LEDs:

• General purpose lighting

• Downlights

• High Bay lighting

• Low Bay lighting

• Spotlights

• Solid State Lighting (SSL) replacements


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RS-artikelnummer 920-9401
Tillv. art.nrILO-12FF4-23NW-EP211.
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8520 lm - 23mm 4000K - DURIS S 8 120 ° 80 White - 1500mA 28 x 28 x 1.4mm
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Tillv. art.nrCOB10W-W
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1080 lm @ 3000 K - - 3000K 10W - 120 ° 70 White 29 V 400 (Max.)mA 20 x 20 x 1.5mm
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Tillv. art.nrCXA1512-0000-000N00K427H
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- - - 2700K 24000mW XLamp CXA1512 115 ° - White 36 V 600mA 15.85 x 15.85 x 1.7mm
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Tillv. art.nrCXA1512-0000-000N00K427H
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- - - 2700K 24000mW XLamp CXA1512 115 ° - White 36 V 600mA 15.85 x 15.85 x 1.7mm
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Tillv. art.nrCXA1816-0000-000N0HN240H
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- - - 4000K 38000mW XLamp CXA1816 115 ° - White 36 V 900mA 15.85 x 15.85 x 1.7 mm, 17.85 x 17.85 x 1.7 mm
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Tillv. art.nrCXA1816-0000-000N0YJ427H
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- - - 2700K 38000mW XLamp CXA1816 115 ° - White 36 V 900mA 17.85 x 17.85 x 1.7mm
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Tillv. art.nrCXA1830-0000-000N0YP427H
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- - - 2700K 57000mW XLamp CXA1830 115 ° - White 36 V 1400mA 17.85 x 17.85 x 1.7mm
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Tillv. art.nrCXA1507-0000-000N00E427H
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- - - 2700K 14800mW XLamp CXA1507 115 ° - White 36 V 375mA 15.85 x 15.85 x 1.7mm
RS-artikelnummer 809-2199
Tillv. art.nrCXA2540-0000-000N0HU440H
VarumärkeCree LED
118,90 kr
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- - - 4000K 86000mW XLamp CXA2540 115 ° - White 36 V 2100mA 23.85 x 23.85 x 1.7mm
RS-artikelnummer 171-2935
Tillv. art.nrCMA1825-0000-000N0H0A40G
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3557 lm - 12mm 4000K 61W XLamp 115 ° 82 White 34.6 V 1600 (Maximum)mA 17.85 x 17.85 x 1.7mm
RS-artikelnummer 168-4282
Tillv. art.nrCXA1304-0000-000C0U9440H
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- - - 4000K 10900mW XLamp CXA1304 115 ° - White 9 V 1000mA 13.35 x 13.35 x 1.15mm
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Tillv. art.nrVLMW1500-GS08
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- 180 mcd - 7000K - VLMW15 - - White 3.05 V 5mA 1 x 0.5 x 0.35mm
RS-artikelnummer 171-2936
Tillv. art.nrCMA1825-0000-000N0U0A30G
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2650 lm - 12mm 3000K 61W XLamp 115 ° 92 White 34.6 V 1600 (Maximum)mA 17.85 x 17.85 x 1.7mm
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- - - 3000K 86000mW XLamp CXA2540 115 ° - White 36 V 2100mA 23.85 x 23.85 x 1.7mm
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