Multi-Light Sequential Flasher - Models 03.W3010A / 03.W3010R & Model 03.3010/6 - Controls up to eight (8) light heads*. Not for use with headlights. Three sequential modes: left to right, right to left and center out. Model 03.W3010A also includes an alternating mode. Model 03.W3010R also includes a random mode. *Model 03.3010/6 controls up to 6 heads. 100% solid-state. Waterproof. Made in the U.S.A.