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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Description Price Typical Luminous Flux Luminous Intensity Optical Source Diameter Colour Temperature Radiant Flux Series Viewing Angle Colour Rendering LED Colours Forward Voltage Forward Current Dimensions Automotive Standard
RS Stock No. 884-7383
Mfr. Part No.CXB3590-0000-000R0HCB30G
BrandCree
£31.13
Each
Units
12134 lm - 30mm 3000K 137W CXA2 115 ° 80 White 72 V 1800 mA, 3600 mA 34.85 x 34.85 x 1.7mm -
RS Stock No. 162-9780
Mfr. Part No.CXB3590-0000-000R0HCB30G
BrandCree
£28.021
Each (In a Tray of 50)
Units
12134 lm - 30mm 3000K 137W CXA2 115 ° 80 White 72 V 1800 mA, 3600 mA 34.85 x 34.85 x 1.7mm -
RS Stock No. 884-7450
Mfr. Part No.CXB3070-0000-000N0HAB30G
BrandCree
£18.31
Each
Units
5784 lm, 9413 lm - - 3000K 107W CXA2 115 ° 80 White 36 V 2100 mA, 2800 mA 27.35 x 27.35 x 1.7mm -
RS Stock No. 162-9777
Mfr. Part No.CXB3070-0000-000N0HAB30G
BrandCree
£14.202
Each (In a Tray of 100)
Units
5784 lm, 9413 lm - - 3000K 107W CXA2 115 ° 80 White 36 V 2100 mA, 2800 mA 27.35 x 27.35 x 1.7mm -
RS Stock No. 162-9778
Mfr. Part No.CXB3070-0000-000N0HAD30G
BrandCree
£13.896
Each (In a Tray of 100)
Units
9413 lm, 9967 lm - 23mm 3000K 107W CXA2 115 ° 80 White 36 V 2800mA 27.35 x 27.35 x 1.7mm -
RS Stock No. 884-7380
Mfr. Part No.CXB3070-0000-000N0HAD30G
BrandCree
£24.12
Each
Units
9413 lm, 9967 lm - 23mm 3000K 107W CXA2 115 ° 80 White 36 V 2800mA 27.35 x 27.35 x 1.7mm -
RS Stock No. 162-9779
Mfr. Part No.CXB3590-0000-000N0HCB30G
BrandCree
£26.509
Each (In a Tray of 50)
Units
9967 lm, 12134 lm - - 3000K 137W CXA2 115 ° 80 White 36 V 2800 mA, 3600 mA 34.85 x 34.85 x 1.7mm -
RS Stock No. 884-7387
Mfr. Part No.CXB3590-0000-000N0HCB30G
BrandCree
£29.16
Each
Units
9967 lm, 12134 lm - - 3000K 137W CXA2 115 ° 80 White 36 V 2800 mA, 3600 mA 34.85 x 34.85 x 1.7mm -
RS Stock No. 920-9417
Mfr. Part No.ILO-26FF4-33UL-EP211.
£38.59
Each
Units
18460 lm - 33mm 6500K - DURIS S 8 120 ° 80 White - 1500mA 38 x 38 x 1.4mm -
RS Stock No. 920-9414
Mfr. Part No.ILO-26FF4-33NW-EP211.
£26.70
Each
Units
18460 lm - 33mm 4000K - DURIS S 8 120 ° 80 White - 1500mA 38 x 38 x 1.4mm -
RS Stock No. 903-3646
Mfr. Part No.COB-100W-C
BrandPowerLED
£30.91
Each
Units
12000 LM @ +-300K - - 6000k +-300K 100W - 120 ° 70 White 31.5 V 4000 (Max.)mA 46 x 40 x 2.2mm -
RS Stock No. 884-7377
Mfr. Part No.CXB2530-0000-000N0HU440G
BrandCree
£7.35
Each
Units
4063 lm, 4366 lm - 19mm 4000K 61W CXA2 115 ° 80 White 36 V 1600mA 23.85 x 23.85 x 1.7mm -
RS Stock No. 162-9772
Mfr. Part No.CXB2530-0000-000N0HU440G
BrandCree
£6.076
Each (In a Tray of 100)
Units
4063 lm, 4366 lm - 19mm 4000K 61W CXA2 115 ° 80 White 36 V 1600mA 23.85 x 23.85 x 1.7mm -
RS Stock No. 146-1822
Mfr. Part No.L2C5-30901211E19C0
BrandLumileds
£17.869
Each (In a Tube of 50)
Units
4215 lm - 18.5mm 3000K - LUXEON CoB with CrispWhite (Gen 2) 115 ° 90 (Min.) White 38 V - 28 x 28 x 1.5mm -
RS Stock No. 123-5693
Mfr. Part No.L2C5-30901211E19C0
BrandLumileds
£22.73
Each
Units
4215 lm - 18.5mm 3000K - LUXEON CoB with CrispWhite (Gen 2) 115 ° 90 (Min.) White 38 V - 28 x 28 x 1.5mm -
RS Stock No. 919-9733
Mfr. Part No.CXA1850-0000-000N0HW250H
BrandCree
£21.37
Each (In a Tray of 40)
Units
- - - 5000K 78W XLamp CXA1850 115 ° - White 35 V 2100mA 17.85 x 17.85 x 1.55mm -
RS Stock No. 809-2170
Mfr. Part No.CXA1850-0000-000N0HW250H
BrandCree
£23.51
Each
Units
- - - 5000K 78W XLamp CXA1850 115 ° - White 35 V 2100mA 17.85 x 17.85 x 1.55mm -
RS Stock No. 884-7462
Mfr. Part No.CXB1304-0000-000N0HB430G
BrandCree
£1.45
Each (In a Pack of 2)
Units
453 lm - 6mm 3000K 10W CXA2 115 ° 80, 90 White 36 V 250mA 13.35 x 13.35 x 1.7mm -
RS Stock No. 162-9751
Mfr. Part No.CXB1304-0000-000N0HB430G
BrandCree
£1.235
Each (In a Tray of 100)
Units
453 lm - 6mm 3000K 10W CXA2 115 ° 80, 90 White 9 V, 36 V 250 mA, 1000 mA 13.35 x 13.35 x 1.7mm -
RS Stock No. 884-7425
Mfr. Part No.CXB2540-0000-000N0HW230G
BrandCree
£6.93
Each
Units
5031 lm, 5380 lm - 19mm 3000K 79W CXA2 115 ° 80 White 36 V 2100mA 23.85 x 23.85 x 1.7mm -
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