LED Floodlights

Enlux, a company in Arizona, has created floodlights built from LEDs. They did this by removing the diodes from their individual plastic housings and clustering them on a heat-dissipating circuit board, known as a light engine. They also created finned aluminum housing that spreads the heat across its surface. The 22-watt floodlight ($80) gives off about as much brightness as …

Compact Fluorescents (CFLs)

CFLs provide the same amount of light (lumens) as standard incandescent bulbs, but have lower wattage ratings. A standard incandescent light is very inefficient because much of the energy it uses is turned into heat instead of light. A compact fluorescent bulb turns more of its energy into light and less into heat. It uses 75 percent less energy than …

12V Compact Fluorescents (15 or 23 Watt)

This is a meta-efficient bulb because it is a 12V compact fluorescent. Available in 15-watts, equal to a 60-watt incandescent (880 lumens), or 23-watts, equal to a 100-watt incandescent (1350 lumens). These lights have a warm color (2700K), operate at 14° to 130°, and measure 5.2"L x 2.1" diameter.

11 Watt Compact Fluorescent 120V

The equivalent of 60W incandescent bulb, but emits full spectrum light similar to daylight, uses only 11W. Available from: Gaiam.Com ($9)

Three-Way Compact Fluorescent 120V

Three-way compact fluorescents are now available. This bulb offers the warm glow of an incandescent in three different wattages: 11, 22 and 33 watts, comparable to 40, 75 and 115 watt of a standard bulb. Available from: Amazon ($11.90)

23 Watt Dimmable Compact Fluorescent 120V

A compact fluorescent that works works with most standard dimmers. Equivalent to a 90W incandescent bulb. Available from: Amazon for about $14. Also available is a 15W bulb.

LEDs (Light Emitting Diodes)

In recent years, significant advances have been made in the manufacturing of LED bulbs. Once used only as power indicators on appliances, LEDs can now be used to light a room or in powerful flashlights. Some of the advantages of LEDs are: LEDs use about 1/50 of the power of standard incandescent bulbs, and half the power of compact fluorescents …

Cold Cathode Compact Fluorescents (CCFs)

Cold Cathode Fluorescent lights draw very little power for the light they deliver. CCFs produce up to 80 lumens per watt. Halogen lights typically produce 15-18 lumens per watt, and the most efficient white LEDs on the market produce 23 lumens per watt. CCF lights provide up to 25,000 hours of service life and unlimited starts. The CCFs are similar …