Fluorescent Replacement LED Light Motorhome T8 T5 12" 18" RV Travel Trailer One pair LED replacement for your Fluorescent bulbs. (New Improved Design 2017) These will not drain your battery and does not require expensive ballast or bulb replacements; Rated for 30,000 hours of operation. Only 6.5" long but 80smd each will produce of 50% more light than a 12" fluorescent bulb, but only uses 3w each. No need for ballast. Easy to install, simply disconnect 12v from your fluorescent ballast and connect it to LEDs directly ( no ballast needed). Twist cap connector included. (Light Fixture not included)(No Installation Instruction) Will replace T8 18" and T5 12" Fluorescent bulbs (18" housings can accept 4 led lights for extra brightness).