Compact, solid state electronic module converts brake lights into two choices of visual alerting signals when brakes are applied. Mode one emits three short flashes followed by one long flash (3.5 seconds); repeats as long as brakes are applied. Mode two emits five short flashes followed by a steady on light; light remains on until brakes are released. Specifications: 12V DC, max. capacity 10A, sealed weather-resistant heat sink fits Case™, 21/4in L x 5/8in H x 15/8in W. Made in the USA.