L4 Car Dual USB Charger QC3.0 USB Power Outlet w/ Voltmeter + Switch, Blue, 501 Original

L4 Dual QC3.0 USB Charger Quick Charge 3.0 USB Socket Adapter Power Outlet with Voltmeter + Switch for 12V-24V Car Boat MotorcycleSpecification:Output interface: USB port * 2Output current: ≤3000mAOutput voltage: ≤5 VFast charge agreement: QC3.0 versionMaximum power: 18 WVoltage display range: 4-28VVoltage error: ±0.1VCurrent display range: noCurrent error: ±0.1ANo-load power: 0.18WInput voltage: 12-24VInput current: ≤3AOvercharge protection: prevent digital device overchargeOverload protection: prevent insufficient load when charging high-power digital devicesOver-current protection: prevent instantaneous large current from burning digital devicesOver-temperature protection: automatic protection when the temperature is too highUndervoltage protection: prevent digital devices voltage from being too lowAnti-installation protection: protect the positive and negative poles from wrong wiringShort circuit protection: automatic protection in case of short circuitWorking environment: temperature: -40~+60 °C, humidity: ≤90%Storage environment: temperature: -20~+40 °C, humidity: ≤90%Material: shell: environmentally friendly flame retardant ABS, USB port: phosphor copperSize: Maximum diameter 37.0mm/1.46\\\", opening diameter 29-30mm/1.14-1.18\\\", length 39.0mm/1.54\\\"Touch switch: touch the switch for 1-2 seconds to control the USB power on/off stateShell color: Black/Red/Gold/Blue (Optional)Light color: Blue (Black/Blue Shell), Red (Red Shell), Green (Gold Shell)Note:1. There may be slight size deviations due to manual measurement, different measuring methods and tools.2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.