iSmartLED 4 Switchable LED Lighting Levels of 9W/4.5W/2.3W/0.2W, A19 for Medium Base Dimmable Daylight White, 60W Equivalent Incandescent Light Bulb, for Type E26, E27, 820lm, Color Temperature 6000K Provides 4 levels of switch-controlled lighting &#8211; no dimmer required, just use your standard light-switch. 9 Watt output for reading, 4.5 or 2.3 Watt for relaxing, 0.2 Watt for safety or night-light. Direct replacement for a screw-fitting (E26/E27) 60 Watt, incandescent light bulb. Consumes 70-90% less energy than a normal incandescent or halogen light bulb. Much cheaper to run than incandescent or halogen lighting &#8211; has a 22+ year life expectancy.