【SUPER VISIBILITY】ASPL 29.5”emergency strobe light is designed with 54 high intensity LEDS, Bright enough for day use. Both the front and back of the light have SIX groups of LEDs, and both left and right sides one. This unique design not only meets higher brightness needs but also warns other vehicles more effectively. | 【EASY TO INSTALL】4 x 7 strong magnets with larger thick rubber suction cups, more stable than other 4 x 4 magnets. Very quick to mount without hurting the roof of your vehicles, as well as adding strength on attachment. 16.4 ft heavy duty cable and 12-24V plug and play, long enough to install the light anywhere of the vehicle. | 【26 FLASHING MODES】Double switch buttons setting, 26 Patterns to choose from. You can switch ON/OFF or select the flashing mode conveniently at the cigarette lighter plug buttons. Last used pattern recall/memory function. | 【HIGH QUALITY】 Made of durable aluminum material, waterproof with IP67, over 50,000 hours life span. Great to use in rain, fog, dust, and snow weather, resisting moisture and vibration, escorting your driving. | 【FEATURES】29.5"L x 8.1"W x 3.7"H. Power: 54W. High-Power: 1W / LED Working at DC12-24V.This rooftop strobe light bar is a great choice for firefighter, snow plowing, safety warning, emergency vehicles, utility workers, postal service, construction vehicle, etc.