Contact Dimmer Switch: Unlike normal Contact reading lamp, the built-in switch of this lamp is in the light body. You can Contact any place of the light body to turn the light on or off. Long Contact the entire light body to adjust the brightness of the light. USB Port: The lamp body has a USB port. You can also charge your electronic devices via this connector when using the lamp. (Note: If you use the USB port for charging, you can not adjust the brightness of the light) 180 angle adjustment: classic design for reading lamps. With gentle lighting without glare, you can adjust the direction of light by turning the lantern post. Easy to install: you can install it wherever you want. These LED spotlights can also be used as double head, three head cabinet and mirror light. MULTI-FACILITY - Perfect for installing in trucks, , RVs, trailers, boats and other DC 12V . European style, simple appearance, not only for lighting, but also to decorate your car. Input voltage: DC12V-24V Light Source: 3W High LED Color Temperature: 3000-3200K for warm white Mount : Wall Mounted Illumniation Area: 5 light color: warm light colour: silver Material: aluminum Package Contents: 2 x led reading lights Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.