Blue 4" LED Beacon Strobe Rotating Spot Light Mount on Roof of Vehicle Emergency Lighting High quality cigarette plug. On/Off Button With LED Light. Light is equipped with a powerful magnet. The wire length is 8 feet long. Momentary Switch (HOLD BUTTON FOR 1-SECOND TO CHANGE FLASH PATTERN) There are 3 flash patterns: rotating flash, 1 flash per-second, and 4 flash per-second. Strong SMD LEDS (BRIGHT IN DAYTIME)