Quality:
The life expectancy of this led is 200.000 hours and with 60° of
temperature of use, which is the case, they is 100.000 hours!!!
that is to say + 34 years of nights of 8:00
or 25 years avec11 H of lighting of night.
one can thus say that they is 30 years of assured lighting without intervention
nor cleaning because seals and all that is organic does not resist.

Powerful LED of 105 lumens/W, is in effective situation 80 lumens/W.
The bars are of 20 leds of 1 W, that is to say 20W

Like Lego, one composes of 1 bar with 12 bars is of 20 with 240W (
1600 to 19.200 lumens.)
The economy in consumption is considerable with a return on
4.4 years investment.
Lighting profiting from 5 years a full cover!!!