Fulight True-Color Dimmable &curren; LED F15T8 Tube Light (Rotatable)-18" (17-3/4" Actual Length) 1.5FT 7W, Cool White 4000K, Double-End Powered, Frosted Cover, Works from 110-120VAC 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!*** FLEXIBLE ENERGY CONTROL & TRUTH & HEALTH: Fully Dimmable + Vivid True Color - Instant-On Cool White 4000K with ~95CRI brings you the ultimate experience of LED lighting! Rotatable: light forwarding angle can be adjusted by +-90 degrees to fit any light fixture! Low heat, eco-friendly, and saving &gt;50% Energy SUGGESTED DIMMERS (Amazon): Lutron DVELV-300P (Best Quality). For low-cost dimmers, you may consider: Leviton IPI06-1LZ, LevitonTBL03-10E(wall-plug), Leviton 6674-P0W, Lutron DVCL-153P-WH, Lutron MACL-153M-WH, Lutron TG-600PH-WH, Lutron TTCL-100H-WH (wall-plug)