Enegy Saving Lamp Specifications:1. Volt: 110V-240V 2. Watts: 3W,5W,7W,9W,11W,13W,15W3. Life ... No center dark area2) High center intensity, 2 times higher than normal spiral lamp, about 6 times higher than U shape ... and creative technology7) Especially applicable for ceiling fan, table lamp, hanging pendant fixture, and decorative usage8) Saving 80% energy than incandescent bulbs Energy Saving Lamp