Octo Warning LED Beacon Magnetic Mount - Rotating Strobe Beacon Light - Red/Blue SUPER BRIGHT 360 VISIBILITY - Featuring SpeedTech Lights' enhancing Eclipse Optic Technology. SAE J845 CERTIFIED - Tested & Certified by a third party independent test lab. PASSED. 32 FLASH PATTERNS - Memory recall - Choose from a variety of warning patterns and rotating. WEATHERPROOF - Secure, durable, weatherproof housing for harsh environments. MAGNET MOUNT - CIGARETTE LIGHTER PLUG & PLAY. Super easy installation.