Cars, motorcycles, ATVs and other 12-24V models. Waterproof cover is waterproof and dustproof, extending the service life of the charger Advanced PVC material, the outdoor life is , and the appearance is more textured. Dual USB high current design, can quickly charge multiple products at the same time. Intelligent IC design, can automatically adjust the charging speed according to battery power and type With overvoltage and overcurrent protection to safe charging. With automatic protection function, the circuit can be protected when the circuit is reversed. Easy to install, the main body is fixed to the handlebar or other you want to install, and the red and black wires can be directly connected to the positive and negative terminals of the battery. Our 2.1A capacity dual USB charging is perfect for charging GPS navigators, mobile phones, and tablets, and can charge two mobile phones at the same time. Product power socket and power cord are integrated Product Name: Advanced waterproof dual USB charger Input voltage: 12V-24V4.0V USB (output) voltage: 5V 0.25V Insurance: 10A Installation: Universal installation of outdoor vehicles such as motorcycles, yachts, cars, and ATVs Note: It is also possible to connect the to the positive lock output line (the door lock black line is the positive output line), and the charger black line is connected to the electric door lock negative line (generally green is the negative pole). In this way, the key can be turned off, and the key is turned on. Colour:black Material:PVC Package Contents: 1 x Waterproof charger 8 x Install 1 x Spare double-sided tape Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.