LOW VOLTAGE - The input voltage of this RV reading light is 12V DC. Please check the voltage before installation. Otherwise, this 12V RV light will burn out. Rotatable - 90-degree rotation; the lamp body allows you to adjust the lighting angle of this 12V RV light as needed. 12V RV Reading Light - The RV light has an on/off switch on the base of the lamp, making it easy to turn the light on and off. EASY INSTALLATION - The included installation accessories make this RV reading light easy to install. If you have any questions about the installation, please contact us. Color: Cool White The size is measured manually, please allow an error of 1-3 cm. Due to different monitor pixels, there may be a color difference; please refer to the actual product. After receiving the package, if you are dissatisfied in any way, please contact me first. Do not leave negative feedback lightly. Thank you, and have a nice day.