New design with LEDs powered by a heavy-duty 6-volt battery (not included). Meets May 2001 ITE purchase specification. Offered in 6-volt flashing type “A”, steady burn type “C”, or combination “A” and “C”. Meets MUTCD visibility requirements. Yellow lens version tested by a Coast Guard-approved laboratory. Circuit assembly finger loop added for ease of release from the upper light case. Available with a yellow or red lens.