Conserve energy by replacing any 100-watt incandescent light bulb with this 23-watt fluorescent bulb that emits the same amount of light! This 1600-lumen bulb is the same size as standard light bulbs, easily fitting in small lamps, recessed lighting fixtures, or anywhere else you usually install an incandescent bulb.The 23-Watt Mini Spiral Fluorescent Light Bulb features excellent color rendering and excellent light distribution as well as a double coating for higher lumen maintenance. A built-in soft-start circuit ensures a longer bulb life: Built to last 10,000 hours, this fluorescent light bulb has an average life span of more than 10 times that of standard 1,000-hour incandescent bulbs. This fluorescent light bulb is also available in a 18-watt version that's comparable to a standard 75-watt incandescent bulb and a 13-watt version that's comparable to a standard 60-watt incandescent bulb.