GT1200-T8, 18 Inch 12 Volt Fluorescent Tube 1200 Lumen LED Replacement with Up-Dated Ballast Bypass Harness Designed in the USA by GREGG WILSON DESIGNS, this product does not emit ultraviolet (UV) light and will last up to 60,000 hours or more; Patent Pending Harness Housing to prevent the short circuiting problem that is problematic with other T8 Tubes; The special design allows the Glow-Tube to produces 1200 lumen of bright 4200K light without the invasive LED blinding HOT SPOTS produced by others; 8-30 Volts, the wide voltage range is designed to withstand the wide voltage fluctuations of a modern RV deep cycle battery system; ALSO see our other great NAKED-BULB, BUG-GUARD and MOTION-GUARD products to keep your camping area safe, secure and well lit;