Instructables
Picture of LED Bulb Measurements, You Know, for Kids
As LED bulbs come down in price and up in performance, the viability of LEDs as a replacement for incandescent, halogen, and fluorescent lighting approaches a tipping point. I've been into LEDs for a while and have made many of my own bulb replacements and specialized LED fixtures. However, it is still nice to be able to drive my Escalade 7 blocks down to the local big box home improvement store and fork over some cash for a commercially made LED bulb while sipping my half caf mocha latte and chatting loudly and profanely with my buddies about the epic powder experienced during my recent ski weekend on a bluetooth headset, brah.

Toward that end, I recently rounded up a number of the LED bulbs I've bought over the past years and measured their power usage and light output using a kill-a-watt,  integrating sphere and light meter. The following details those measurements and presents a look into the economics and efficiency of today's LED bulbs. As this is a rapidly changing field I hope to keep these measurements somewhat current as new products are introduced. Due to the wide range of bulb types out there, I am concentrating on the most common style, standard A-series type screw in bulbs.
 
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