We are proud to serve First Responders and Law Enforcement Officers and these strobe lights will not disappoint! Using the latest in solid-state LED technology these Super-Bright LED strobe lights blow away the competition. The built in controller module allows you to select 19 different patterns without the need of an external LED controller. Product Features:- Width: 1"- Length: 3.75"- Height: 1.2"- Lifetime: 100 000 hours- Flush Mount Design 19 Different Flash Patterns Including but not Limited to: - Random(default) - Steady - Single - Mega - Double - Triple Quad - Quint - 8 Flash - Single-Quad - Single H/L - Single-Triple-Quint To select Flash Pattern just apply +12V to Yellow Wire: - for less than 1 second for next pattern- for more than 1 second for previous pattern- for more than 5 seconds to reset to default Package Includes: 1 x ORACLE 4 LED Slim Strobe