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