Street Glow's Xenon Strobe Lights are now brighter and flash faster than ever ( up to 2 1/2 times per second)!! They come with everything needed for the quick and simple installation, as well as detailed instructions. Xenon Strobe Lights look great in speaker boxes, under seats, under the hood, the possibilities are endless!! Each Xenon Strobe Light carries a lifetime guarantee from Street Glow Each Strobe Light Measures: 3" wide 1.5" high 1.375" deep Also available as an option is the Streetglow Strobe Control Module that can link and control up to 5 strobes and make different patterns (Optional above. Not required to use these strobe lights). ANSV2GR