U.S. Department of Energy projections published in April 2012 showed the government had expected the industry would only achieve efficiencies of 160 lumens per watt for LED lamps by 2015.
The result is a relatively warm light, between 3, 000 and 4, 000 kelvin, that generates more than twice as many lumens per-watt as Philips' current LED bulbs.
The C4 high output LED in this flashlight provides up to 180 lumens of light output and a runtime of 50, 000 hours for reliable and long lived operation.
Rated Class 1 Division 1 and Class 2 Division 1 this light is fitted with a high performance C4 LED rated at 50, 000 hours of operational life and 180 lumens of output.