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 adjustment: classic design for reading . With gentle lighting without , you can adjust the direction of light by turning the lantern post. Easy to install: you can install it wherever you . These LED spotlights can also be used as double head, head cabinet and mirror light. MULTI-FACILITY - Perfect for installing in trucks, , , trailers, boats and other DC 12V . European style, simple appearance, not only for lighting, also to decorate your car. Input voltage: DC12V-24V : 3W High Power LED Color Temperature: 3000-3200K for warm white Mount : Illumniation Area: 5 light color: warm light colour: silver Material: aluminum Contents: 2 x led reading Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.