For your general purpose lighting needs consider using the Philips 20-Watt T12 Cool White Linear Fluorescent Light Bulb (F20T12/CW/4100K). These bulbs cast a cool， white light making them ideal for garages， workshops or basements. Estimated yearly energy cost of $2.41.
Brightness: 1200 Lumen
Estimated yearly energy cost: $2.41 (based on 3 hrs/day， 11c/kWh. cost depend on rates and use)
Light appearance: 4100K (cool white)
Energy used: 20-Watt
Lumens per watt: 60
Contains mercury: yes
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