PlasmaGlow's FX4000 Professional Strobe Kit uses the latest technology to bring ambulance-power strobes to your vehicle in a compact package. The PlasmaGlow FX4000 Strobe Kit is the only kit in the market to output 100 watts of power for extreme strobing action!Four strobe bulbs are included, and can be mounted in headlight, foglight, or tail light casings. There are 2 U-Shaped Strobes and 2 I-Shaped Strobes. The kit features 15 strobe patterns that can be changed with a push of a button with the included remote. There is also a low-power mode if desired. Up to 5 Strobe Kits can be linked together to operate simultaneously.The FX4000 Kit is also the only kit on the market to feature patented SSA (Strobe Security Alert) technology. SSA interfaces with any security system to activate your strobes with your alarm. Detailed installation instructions and all mounting hardware are included. Because of its extreme brightness, please check local laws before using this kit on the street. Lifetime Warranty.