LUMENIX 42 LED Rooftop Strobe Beacon Light Bar High Bright Hazard Warning Flashing Plow Light with Synchronous controller for construction Vehicles Tow Tru 3 directional light modes, providing convenience for traffic indication. UPGRADE MULTI-FUNCTION CONTROLLER - Our led roof top strobe light bar adopts a multi-function controller design, and the internal LED lights synchronize the current strobe mode, which is more convenient. TRAFFIC COMMAND FUNCTION - Our rooftop strobe light provides multi-purpose 38 kinds of strobe mode switching design, providing early warning function for potential hazards. LUMENIX LED Rooftop Strobe Beacon Lights Bar w/Controller Magnetic Emergency Traffic Warning Safety Caution Flashing Light for Construction Vehicles Snow Plow Tow Trucks Postal - Amber (Patent Design) - Color Amber HIGH PERFORMANCE LED - This Patent Design emergency flashing light bar uses 42 high-intensity LED lamp beads, which effectively provide higher brightness... ENHANCED MAGNETIC BASE - This warning strobe light uses 4 reinforced magnetic base design, 20 magnets provide super adsorption capacity, even at high speeds can keep the lamp body stable operation without falling off. HIGH PERFORMANCE LED - This emergency flashing light bar uses 42 high-intensity LED lamp beads, which effectively provide higher brightness output, which can be clearly seen day and night. 12V 24V Car Roof Top Strobe Lights Emergency Warning 42 LED Safety Magnetic Mount Truck Ambulance Snow Plow Smart Controller - 34 Fast installation speed, with a rubber suction cup, will not damage to the paint on the top of the car.