Xprite 4 White Hide Away Strobe Tube for 80w / 120w / 160w Kits Headlight Replacement Bulbs Compatible with: 160W & 120W HID Bulbs Hide-a-way Emergency Hazard Warning Strobe Lights Bulbs Size: 1 3/4" height 1" Bottom 1 1/2" Base Package Includes: 4 X 20w tube bulb Each tube is 20W. It can be used on 4 / 6 / 8 bulbs hide a way strobe light kit. Note #: It is universal replacement bulb ( MADE BY Xprite ). HOWEVER, we are not responsible for compatibility or " DO NOT MATCH " , if you purchased HID Bulbs Hide-a-way kit from other sellers or vendors !