Easy to use and install Just need fix the suction cup on your windshield and insert the dual switch into the cigarette lighter (12V DC). It is also easy to switch the flash patterns. Select from 9 flash patterns Make sure you are noticed in an emergency. You can use the switch to advance through 9 different flash patterns, so you can find the perfect choice. also click the Memory Recall Function switch for your most recent flash pattern. SPECIFICATION: Dimensions : 7.16x 4.1x 1.26/182x105x32mm (LxWxH) Working voltage: 12V LED Source: 16W(1W/LED) Flash modes: 9 different strobe/flash patterns, last memory recall. Power Cable: 9.8FT cable with cigarette plug power controller. Weight: 0.6kg/1.32lb. Lifetime: Over 50,000 hours lifetime. Installation: With 6 suction cups, easy to intall to your vehicles. Package Included: 2 x 8W LED dash strobe light with 12V cigarette adaptor 2 x U-Shaped Bracket 4 x fixed screws 6 x suction cups - HIGH-INTENSITY LEDs: This emergency vehicle lights comes equipped with 16 High-Intensity LEDs will ensure your vehicle cant be missed day or night. The emergency vehicles lights lifespan over 50,000 hour. Perfect for use in fog, rainy, snowy and mud wind season ideal and emergency situations, durable and bright light. - FLASH PATTERNS: 18 selectable flash patterns that provide a variety of strobe lighting, including pulsing, alternating, to alert everyone to your presence. Includes last pattern memory recall. - EASY INSTALLATION: With 6 suction cups. Mounts directly to your windshield or your dash with suction cups to hold the red white emergency lights in place. It can be freely installed on the front windshield, rear window to function as deck or dash strobe lights. - WIDE APPLICABLITY: Dual switch design with power ON/OFF and flash change switch. Just need plugs into any 12V cigarette adapter vehicles. - DIMENSIONS: The 2x 7.16 inch frist responder lights has two pieces, each piece is 7.16 inches long. The length of the wire from light to light is 3.2FT. The length of the wire from the light to the cigarette lighter is 9.8FT.