1. Anti-flame resistant nylon environmentally friendly materials. 2. The input voltage of the product is 12-24V, all trucks of 12-24V can be installed and used, and the scope of use is very wide. 3. The product is equipped with 3.1A dual USB, which can be used for power supply of mobile phones, tablets and GPS. 4. The product is equipped with a voltmeter to detect the use of the car battery at any time to prevent safety accidents caused by poor battery. 5. Product distribution 60CM with OT terminal red and black wire, installation is more convenient. 6. Wiring instructions: The copper terminal at the back of the product (+) the positive pole of the power supply, (-) the negative pole of the power supply. 7. Parameters: Product size: product head diameter: 3.7CM total length 5.4CM Opening size: 2.9CM Product line length: 60CM Product material: environmentally friendly anti-flame retardant nylon material Product color: black Input voltage: DC12-24V Output voltage: 5V Output current: 4.2A Reverse protection: Yes Measurable voltage: 6-38V Working temperature: -20~80 degrees Celsius Waterproof rating: IP66Specification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 14cm * 10cm * 4cm / 5.51inch * 3.94inch * 1.57inch Qty per Carton 100 Carton Weight 7.50kgs / 16.53lb Carton Size 48cm * 42cm * 38cm / 18.9inch * 16.54inch * 14.96inch Loading Container 20GP: 348 cartons * 100 pcs = 34800 pcs40HQ: 808 cartons * 100 pcs = 80800 pcs