Fulight Dimmable &curren; T8 LED Tube Light - 2FT 24" 9W (18W Equivalent), Daylight 4500K, F17T8, F18T8, F20T10, F20T12/CW, Double-End Powered, Frosted Cover, Works from 110-120VAC - Fluorescent Replacement Bulbs(Installation Manual included in the Images!!) MUST be directly wired to the 120V AC Power: Disconnect Ballast & Starter if there is any! Installation Manual is attached as the 2nd photo at the left upper corner of this product page! ***DON'T BUY UNLESS YOU UNDERSTAND THIS!*** FULLY DIMMABLE with Comfortable Daylight White 4500K & Color Rendering Index &gt;90% (Works from 110-120VAC). SIGNIFICANT ENERGY SAVING: roughly replaces 18-20W fluorescent, saving ~50% electricity. Electro-Magnetic Compatible (EMC): No radio frequencies interference + No flickering, no UV light, no buzzing ballast! SUGGESTED DIMMERS: If your fixture has a diffusive/transparent cover, you may use a regular dimmer: Leviton IPI06-1LZ, Leviton TBL03-10E (wall-plug), Leviton 6674-P0W, Lutron DVCL-153P, Lutron MACL-153M, Lutron TG-600PH, Lutron TTCL-100H (wall-plug). If your fixture doesn't have a diffusive/transparent cover, please consider to use an electronic low-voltage dimmer: ** Lutron SELV-300P **, **Lutron DVELV-300P**. - Check the 3rd photo at the left corner to get more detailed information!