Dessa enheter är för tillfällen där det behövs stora kvantiteter med ljus. Här är det mycket ljus och stora besparingar. Dessa lampor är mellan 30 och 200 watt i styrka och det motsvarar ungefär det dubbla i vanliga MH lampor.

What is COB? 

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.. 
                          
                                 

Why COB? --Background
LED(light emitting diode) is new technology with advantage of saving energy and very long lifespan. But all LED lightsource 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 @ 20mA. But big size LED chip can only reach 161lm/watt @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.


Advantage of COB 
COB LED has a lot of advantges. For details of advantage of COB, click http://www.cob-led.com/http://www.cob-led.com/COB-LED-Advantage-Chip-on-board.html