PAR38 FLOODLIGHT FULL SPECTRUM COMPACT FLUORESCENT LIGHT BULB 23 WATTS ENERGY STAR CFL 50K INDOOR-OUTDOOR FLOODLIGHT REPLACES INCANDESCENT AND HALOGEN BULBS Reflector PAR38 Floodlight Compact Fluorescent Light Bulb, Durable Hard Glass Construction 23 Watts replaces 100 watt incandescent or halogen bulbs 120 Volts, Medium Base, 5.5" Maximum Overall Length 10,000 Hours, 5000 Kelvin Full Spectrum Color Tone Save up to 80% Energy Usage over Incandescent or Halogen Bulbs