Fulight&reg; Rotatable &curren; LED F15T8 Tube Light-18" (17-3/4" Actual Length) 1.5FT 7W (15W Equivalent), Daylight 6000K, Double-End Powered, Frosted Cover, Works from 85-265VAC - Fluorescent Replacement Bulbs for Under Cabinets Lighting Fixtures (Installation Manual Attached 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!*** Instant-On Daylight White 6000K for HOME (110-120V AC) : Cannot be used in motorhome/RV!! Please click the correct button above to choose 12-30V DC model for your motorhome/RV. Rotatable: light forwarding angle can be adjusted by +-90 degrees to fit any light fixture! Actual length 17-3/4" including pins: Replaces bulb with actual length from 17-5/8" to 17-3/4"! GREEN ECO FRIENDLY + SIGNIFICANT ENERGY SAVING: no flickering, no UV light, no buzzing ballast, no hazardous materials + Saving ~50% electricity (Lifetime&gt;50,000hrs; 3-Year Warranty)