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 outputUses for COB LEDs: General purpose lighting Downlights High Bay lighting Low Bay lighting Spotlights Solid State Lighting (SSL) replacements
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Part Details Brand Stock Typical Luminous Flux Luminous Intensity Optical Source Diameter Colour Temperature Radiant Flux Series Viewing Angle Colour Rendering LED Colours Forward Voltage Forward Current Dimensions
CHIPLED(0402) GREEN ULTRABRIGHT -e4
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Vishay VLMS31J1K2-GS08, VLMS31 Red CoB LED
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- 11.2 mcd Please note that the Stock level on this page is periodically updated during the day.

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Vishay VLMW1500-GS08, VLMW15 White CoB LED, 7000K
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Vishay VLMY334BACB-GS08, VLMY334 Yellow CoB LED
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Vishay VLMY30K2M1-GS08, VLMY30 Yellow CoB LED
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SMD-LED LC ORANGE PLCC2-e3
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Vishay VLMV3100-GS08, VLMV3100 Red CoB LED
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SMD-LED LC ORANGE PLCC2-e3
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SMD-LED RED PLCC2-e3
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SMD-LED LC YELLOW PLCC2-e3
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Vishay VLMR334BACB-GS08, VLMR334 Red CoB LED
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DOME LENS GW YELLOW 6K REEL -e3
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Vishay VLMY3100-GS08, VLMY310 Yellow CoB LED
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- 10 mcd Please note that the Stock level on this page is periodically updated during the day.

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CHIPLED(0402) BLUE ULTRABRIGHT -e4
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Vishay VLMS30J1L2-GS08, VLMS30 Red CoB LED
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CHIPLED(SMD 0603-LED) YELLOW ULTRABR-e4
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CHIPLED(SMD 0603-LED) LC YELLOW-e4
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Vishay VLMS30K1L2-GS08, VLMS30 Red CoB LED
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MINI SMD LC ORANGE -e3
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CHIPLED(SMD 0603-LED) BLUE U.BRIGHT-e4
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