These reflector bulbs replace the most common household flood light bulbs that use Edison 26/27 type medium screw base connector. They are about 8~10 times more efficient than incandescent light bulbs. A 2W LED bulb is about as bright as a 20W incandescent bulb. While that doesn't seem to be very bright, please keep in mind that these bulbs are rated at least 50,000 hours. That's about 50 times longer than an incandescent bulb and about 5 to 10 times longer than a compact fluorescent bulb. Here are a few advantages of a LED bulb:

• Energy efficient. Converts about 20~30% of electricity into light. In comparison, incandescent bulbs converts only 3~10% of electricity into light and compact fluorescent bulbs converts 12~20% of electricity into light.
• Extremely long life. You might never need to replace it! These bulbs are rated for 50,000 hours. That translate into more than 17 years if you use it 8 hours a day, 365 days a year.
• More colors available at No additional cost. Most of our LED bulbs have a few colors to choose from. Several models can even change color.
• Immune to frequent ON/OFF (cycling). Fluorescent bulbs or tubes are very sensitive to ON/OFF cycling while LED bulbs are immune. In fact, one way of dimming LED lights is to turn it on and off at high frequency. This will not have an impact on its life.
• Shock resistant and mechanically sturdy. There's no moving parts. If you drop an incandescent or fluorescent bulb, they will break. If you drop a LED bulb, the plastic shell might break but chances are, the bulb will still work. That's one main advantage of Solid State Lighting.
• Free of hazardous material. Mercury free, lead free. After many many years of usage, you can just dispose LED bulbs like regular garbage. There's no hazardous material that needs to be collected and recycled. If you break a fluorescent tube or bulb, the mercury vapor will leak and cause health problems. There's no such worries from LED bulb.
• Absolutely NO UV and IR radiation. Fluorescent lighting gives out a small amount of UV radiation, and incandescent lighting turns about 90% of the electricity it consumes into infrared radiation. LED lighting, on the other hand, gives out no UV or IR radiation (unless they are specially made as UV and IR emitters). LED flood lights outdoors will not attract insects. LED lighting indoors will not add to your cooling bill in summer.