【High brightness and visibility】2PCS wireless magnetic strobe lights for trucks built-in battery, with 12 pcs high-performance LED chips, high brightness output, ensuring visibility at long distances. Wireless trailer lights for vehicles with USB ports offer faster charging speeds and enhanced compatibility, magnetic trailer lights can last up to 8 hours on a single charge, so you don't have to worry about frequent recharging.Whether it is rainy, foggy, day, night or snow, it can maintain good visibility. 【Strong Magnetic Base】Nrgedzam's magnetic strobe lights equipped with 10 strong magnets at the bottom, (Each magnetic trailer lights has 5 magnets), magnets are pretty strong, which equipped with the larger size of the thick rubber suction cup that the strong suction is not easy to fall off, ensures that adheres firmly to the body of the trailer or any metal surface. Magnetic flashing safety lights will not fall off even when traveling at speeds of up to 80 MPH. It takes only a few seconds to install, is quick and easy to operate. 【Long-Lasting】Nrgedzam's wireless strobe light durable aluminum alloy shell, efficient heat dissipation, strong PC lens, dustproof, shock-proof,waterproof, can effectively cope with a variety of harsh environments, magnetic trailer lights for towing is service life is extended to more than 50,000 hours. 【4 Flash Mode】Nrgedzam's magnetic trailer lights have four flashing modes and a convenient on-off button to provide a variety of stroboscopic modes to effectively warn other vehicles. Utility trailer lights meet a variety of lighting needs, improve safety and upgrade your car's appearance. 【Wide Range of Applications】Nrgedzam's flashing lights for vehicles uses a strong magnetic base, which greatly reduces the installation process of wires suitable for most 12-24V DC powered vehicles such as truck, suv, agriculture and heavy duty, car, trailer, oversize trailer, emergency construction vehicles, tractor, bus, boat,fire fighting truck, snowmobile, golf cart, ambulance ,strobe hazard warning etc. rechargeable emergency strobe light