LED Lumens Per Watt

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I am now officially impressed. Several years ago, I looked into LEDs as competition for CFLs. They were not competitive at all. The lumens per watt was always less. Back then, the max I could find was 71 lumens per watt LED for a huge dollar figure vs a 75 lumen CFL for $5. This [...] [...]

How Many Lumens Do You Need?

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This is the first time I’ve seen someone cram a high pressure sodium bulb down to 35 Watts. Most of the time this bulb is used for industrial lighting or outdoor use in teh 250W range and higher. It gives off a really yellow tint (2000k color temp) and is therefore not something I like [...] [...]