I would be very surprised if each of these lamps actually put out 15,000 lumens. I saw another review of this flashlight that measured the power at 75 watts. At 100 lumens per watt, that would be 7500 lumens; much more likely I think. I have a 150 watt, 21,000 lumen light bulb that is much, much, much brighter. It's just a candle compared to this one. It's very easy to install and the ability to direct the light is good, but it's not as bright as expected. It also interferes with FM radio, which I like to listen to when I'm working in the garage, so after all it's not a light I'll be using often.
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