What’s inside the Samsung 40W-replacement-LED light? @ EDN by Margery Conner…
In February 2010, EDN tore down its first LED bulb (Reference 1). For $20, you got a non-dimmable bulb that produced 500 lumens at a cool white (5000K) and consumed 7W. The warm-white version of the light produced only 450 lumens. Two years later, you can buy this fully dimmable Samsung bulb for $19.95 (list price) that puts out 550 lumens of a nice warm white (3000K), consumes 10W, and boasts a five-year warranty.
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