1Touch Dimmable Light: The dimmer switch is simple to use, short press the switch light, press and hold the switch to adjust the brightness to the desired level for comfortable reading. 2USB Charging Port: Lamp holder is equipped with a standard 5V 2A USB interface, which is suitable for charging mobile phones or electronic devices. 3Flexible and Rotatable: With a flexible arm and lamp head, the lamp can be rotated 350 degrees horizontally and 180 degrees vertically, and the direction of light exposure can be adjusted arbitrarily according to your reading needs. 4Warm White Light: The lamp head uses LED low power consumption lamp source, warm white light, high brightness, 3000k, uniform light, high color rendering index. 5Wide Application: The modern lighting upgrade is suitable for 12 to 24V system vehicles, such as houses, trucks, campervans, trailers, cars, passenger cars, ships, yachts, etc.