The variations are due to differences in LED technology and how manufacturers measure lumen output. Using significantly less energy than traditional bulbs is the main reason that LED light bulbs ...

Your reference point: A standard 100-watt incandescent light bulb produces about 1,500 – 1,700 lumens. Not a measure of brightness; instead, it's a measure of how much electricity (or energy ...

ones with 3000 K are similar to halogen bulbs. Efficiency is the comparison of the amount of light (lumens) produced by a given amount of electrical energy (watts). The more the lumens per watt ...