23 WATT TINY TWIST SPIRAL CFL/50K 15,000 HOUR FULL SPECTRUM COMPACT FLUORESCENT LIGHT BULB 23 Watts, 1700 Lumens, 92 CRI, 4.4" Maximum Overall Length 25% less heat emission than standard spiral cfl bulbs 15,000 hour life rating, lead free glass construction Tri Phosphor bulb coating to maintain consistent brightness levels throughout the life of the lamp VoltMizer electronic ballast provides no flicker, high frequency operation to resist power surges and minimize electrical interference