Designed specifically to work with OEM alarm systems (TSSM) or turn signal module (TSM)Eliminates erratic blinking of turn signalsCompatible with most custom turn signals (including halogen and LED signals)Solid-state waterproof moduleProduces absolutely no heat so it is OK for parade use allows emergency flashers to be used for any amount of timeFor use on models with self-canceling turn signalsMade in the U.S.A.One module needed per pair of signals being equalized.