LED Bulbs

What color light does ENERGY STAR certified LED lighting come in?
Is there ENERGY STAR certified LED lighting?
What are LEDs? How do they work?
Do LED or CFL bulbs produce a hazardous amount of UV light?
Does temperature or humidity affect the life of a CFL or LED Bulb?
Do LEDs create heat?
Can I use an LED bulb or a CFL in a totally enclosed fixture?
Do LEDs need to be recycled like CFLs or other electronics?
Do LED or CFL bulbs cause electromagnetic interference?
Can LED bulbs be used in recessed cans, outdoor lights, or track lighting?
Can CFLs or LED bulbs be used in 3-way sockets?
Are LED lighting products dimmable?
Are there ENERGY STAR certified LED replacement screw-in bulbs?