As far as Edison socket bulbs go, I've found these to be some of the best-
http://www.plasmaled.com/household_led_light_bulb.htm
The 5 watt bulbs on that page are excellent. I have never seen an Edison socket light constructed with low-powered LEDs put out enough light to grow decent plants. The blue ones on that page have proven to be phenomenal at starting from seeds.
Also, as far as LED lighting goes- when dealing with lights that are spectrum-specific, you will not perceive them to be 'that' bright, but that's because they are only emitting light in a very narrow spectrum. Stare at 'em long enough and it'll hurt like hell.
http://www.plasmaled.com/household_led_light_bulb.htm
The 5 watt bulbs on that page are excellent. I have never seen an Edison socket light constructed with low-powered LEDs put out enough light to grow decent plants. The blue ones on that page have proven to be phenomenal at starting from seeds.
Also, as far as LED lighting goes- when dealing with lights that are spectrum-specific, you will not perceive them to be 'that' bright, but that's because they are only emitting light in a very narrow spectrum. Stare at 'em long enough and it'll hurt like hell.