Comparing two 20 inch led light bars one with 3 watt cree leds and one with 5 watt osram leds you can find the cree light bar on amazon here is the link ht.
Cree light bar review.
Then there are losses in the lens and reflectors.
Even the light in day gets 12 hours other 12 hours in in the darkness so the cree led light bar s working time can up to 4years except you put it in darkness all time.
Cree inc located in north carolina manufactures these powerful highly efficient leds.
So this leaves 7200lm.
With 126w of power the whole bar will heat up like a bar heater.
The cree luminaire design guide estimates 10 15 with a lens and 23 loss with a reflector.
Their best leds for light bars boast an efficiency up to 130 lumens per watt.
Once the chip hits 100c you have lost 20 of the output.
The package includes 4pcs 18w flood light bar and 1pc 126w 20in led flood spot combo light bar.
Cree inc headquartered in north carolina is the leading innovator in led lighting technology.
So the working life of all cree led light bar is from 30 000 to 50 000 hours.
Cree are world market leaders in led tech so more lumens per watt more reliability and satisfaction for your.
I ve been running cree light bar for 3 years now and all have preformed faultlessly.
Traveller s cree led light bar is affordable proven tough and tested to be dependable for led fog recon and everyday driving lights.
Traveller cree led light bar.
And it s no different with bangbangche flood spot combo cree led light bar.
It means that working time is about 2 years or over.
While cosmoblaze is relatively new in the led lights arena i am quite confident to say that it can hold a candle to some of the most popular and well established brands of led lighting devices today such as rigid industries visionx roo systems and.
Build quality is excellent and i m really picky on quality.
The 126w led light bar has an operating voltage of 10 to 30v dc with a combo beam.
All the light bars in this guide s led light bar reviews use a version of cree leds.
If an led light bar claims to have the highest luminosity available remember that it cannot do that without using real cree leds.
They are an affordable bar but affordable don t mean cheap rubbish.
The cree bar seems to have both lens and reflectors.