What is COB LED?

COB 
COB (Chips on Board) , is a new technology of LED packaging for LED light engine. Multi LED chips are packaged together as one lighting module. When it light up, it looks like a lighting panel.

slim cob led.jpg

 Why COB? –Background
LED(light emitting diode) is new technology with advantage of saving energy and very long lifespan. But all LED light source can not be faultless especially SMD, HP, flux LED etc. Compare to traditional lighting such as fluorescent lamp, as it is super bright in a small size, it cause uncomfortable glare. In case of no diffused optical lens used, such LEDs usually cause glare and zebra strips . But when optical lens or cover used, it will cause light loss when LED beam pass through this lens or cover.


How COB LED Light source works 

COB LED is multi chips packaged, it can 10 times more increase lighting area, so it avoid uncomfortable glare by the maximum extent. 
Lightspot use small size of chips to make COB LED package.
By now, for small size chip, some famous LED chip manufacturer can reach 249lm/watt at 20mA. But big size LED chip can only reach 161lm/watt at 350mA. The light efficacy decrease when chip size is bigger. Also when LED driver increase current to LED, the light efficacy per watt is even low.

The COB with small size chips will be a trend of LED light source package.

Lightspot holds the patent for invention for COB LED and lamp.


Application of COB Technology 
1, COB LED light sources

LEDs-COB.jpg

2, LED lighting fixture which use COB LED light source

LED Lighting Alight.jpg

If any questions or advices, feel free to contact: info@alight.hk


Post time: 07-29-2017

Personal Information

Please fill below info so that we could contact you for further discussion.

Customization Information

ALIGHT custom service aim to realize your unquie concept on COB LED product which meet your application's needs.Please fill below info so that we would give you our best COB LED solution.

  • Eg:ARE62Z100H-12V;None

Specification Revised:

  • pcs

Special Design/Solution:




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Personal Information

Please fill below info so that we could contact you for further discussion.

Customization Information

ALIGHT custom service aim to realize your unquie concept on COB LED product which meet your application's needs.Please fill below info so that we would give you our best COB LED solution.

  • Eg:ARE62Z100H-12V;None

Specification Revised:

  • pcs

Special Design/Solution: