Dual USB Car Charger for All 12~24V Cars w/ Blue LED Display - Black

1.2.1A+2.1A 5V (MAX 4.2A) output�� fast and safe for charging 2.Waterproof lid is designed like a "hat"�� waterproof effect is better 3.With the blue light work instructions�� more beautiful 4.Convenient and simple to install 5.Can charge multiple devicesat at the same time Wiring method: the back of the charging seat is marked with "+" "-"��corresponding to the positive pole or negative pole of the car or motorcycle.