Omega STR304D 30W Universal Strobe Kit (4 Bulbs) 30W Universal Strobe Kit (4 Bulbs); Four 3-wire strobe outputs EZ Switch with attached 8-Foot 3-conductor cable 15 Different flashing patterns; Color-Coded wiring Waterproof power supply Designed to be installed in 5/8" diameter holes behind the lenses of your parking lights, fog lights, or other lights in the vehicle