This TCP 23 watt SpringLight is designed for general use around the home. This bulb is a suitable replacement for a 90 watt incandescent light bulb.LIGHTING SPECIFICATIONS Type: fluorescent Shape: Spiral Light Output: 1600 lumens Efficacy: 69.5 lm/w Color Temperature: 2,700 degrees Kelvin Color Rendering: 82 CRI Rated Average Life: 10,000 hours Dimmable: No Three-way: No Minimum Start Temperature: -20 degrees Fahrenheit Base Type: E26 medium screw base GENERAL SPECIFICATIONS Input Power: 120 volts AC Power Consumption: 23 watts Width: 2.4 inches Length: 4.8 inches ENERGY STAR Qualified: Yes UL Listed: Yes Packaging: Paperboard Manufacturer Warranty: = or > 12 Months Origin: China Note: This bulb may have reduced rated life in enclosed fixtures or emergency exit lights, and is not suitable in outdoor locations where it would be exposed to the elements, or in conjunction with dimmers, photocells, or electronic timers. This lamp contains mercury. Please recycle at the end of its life.