This Satco 8228 spiral bulb is an 18W Compact Fluorescent Lamp with a 2 pin connector and a voltage of 120V. It has a light color of warm white with a color temperature of 2700K and a luminescence of 1100 lms. The bulb is made of glass with a frosted finish and a spiral shape. It has a lifespan of 10,000-14,999 hours and is Energy Star certified. The bulb is suitable for indoor use and comes in a pack of 1-4 bulbs. This specialty bulb is perfect for lighting technology enthusiasts who want to save energy and money.