I see in the stores that there is new design in bulbs theres led bulbs that screw in a regular light socket the bulbs are led but are incased in a regular incadesant light bulb shape do people use these new bulbs I need one for seedlings what spectrum should I be looking for
5000K-6500K for seedlings, and yep they work great. ~15W/ft2 (+/-7W) is a decent target for veg (not equivalent wattage, but true, actual wattage).