Buyers Products Ultra Thin 3.5 Inch LED Strobe Light Series is designed with an extremely slim .26 in. profile. The lights are rated SAE J595 Class 1 and CA13 certified. They feature 12 flash patterns with synchronous and alternating functions. The surface mounted lights are available in several colors. They can be fastened with screws or the included 3M– self-adhesive tape. Built to withstand the toughest conditions, the lights feature an IPX8 waterproof rating. 90- mounting brackets are sold separately. Lights are backed with a 5 year warranty.