Lighting

Here’s a new LED Desk Lamp from Koncept. It features 66 “super bright” LEDs. The IceLight is about as bright as a 40–60 watt incandescent bulb. A single bright white LED puts out about 1.7 lumens of light, so 66 of them produce about 112 lumens. This 112 lumens is focused in a 50-degree viewing [...]

LEDs are close to becoming metaefficient alternatives to regular light bulbs, but they are not quite there. Right now the brightest LED bulb is equivalent to a 25W incandescent bulb.
The bulb seen here has 36 LEDs and runs on 1W. That means it could run 10 hours a day for a whole year for less [...]

Compact fluorescents are an efficient lighting
source, but the bulbs do contain mercury (usually around 5 mg) and should
be disposed of properly. To find a place to dispose of them, search
for locations by zipcode here.
The amount of mercury contained in them is much
less than
the amount of mercury released during the production electricity needed
to run incandescent bulbs. [...]

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

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.

Bulb Types

 
Bulb Base Types

Color Temperature
The color temperature of light refers to the temperature to which one would
have to heat a "black body" source to produce light of similar spectral
characteristics. Color Temperature is expressed in degrees Kelvin (K). Low
color temperature implies warmer (more yellow/red) light while high color temperature
implies a colder (more blue) light. Moreover, [...]