A light source that is created by a light emitting diode (LED ... lights on myriad products; however, starting in the 2000s, they began to replace incandescent, halogen and CFL fluorescent ...

Fluorescent lights, though more efficient ... the long-term savings on energy consumption and bulb replacement make LEDs a cost-effective choice. LED profiles are designed to dissipate heat ...

When the lights go out, you're in the market for a bulb replacement. But if choosing between CFLs, halogen or LEDs leaves you in the dark, our guides will separate the fact from the hype for each type ...