4" Clear / Red 10 Diode Stop/Tail/Turn Light. Round, sealed waterproof LED lamp for Trucks, Trailers, RVs, Boats and Trailers. Light contains 10 Super Flux Diodes. Clear Lens, Red Diodes. Very bright and very high quality!. No bulbs to replace - ever!. Use 90% less energy. Safe, dependable service. 100% Maintenance Free!. High impact polycarbonate lens and housing are sonically welded. Meet DOT FMVSS 108 requirements. Length 4". Height: 7/8". Width: 4". 3 Prong Pigtails and 4" Grommets are required to mount and install these lights. All are for sell in our store.. Click HERE to buy Grommets and Pigtails.