1. That's a fluorescent tube refined. "

2. Without the Ballast, the fluorescent tube light would continually draw too much power from the high voltage power source causing it to overheat and burn out in a matter of seconds.

3. Linear T8 Fluorescent Tube Light Bulb Cool White (4100K) For your general purpose lighting needs consider For your general purpose lighting needs consider using the Philips 15-Watt Cool White Linear Fluorescent Light Bulb (F15T8 15 WATT) This Bulb casts a cool, white glow that can shine up to 7,500-hours