Advantages of low-voltage lamps: safety: low-voltage lamps are generally 12V/24/36V, which are all safe for human body to withstand voltage. Use in places with a high safety factor. Longer life: Because the circuit is DC low voltage, fewer components are used and the life is longer. No flicker. Since the DC voltage is used, the stroboscopic phenomenon in AC use is avoided. Small size: The volume can be made as small as possible because it does not require complex circuits. Disadvantages: It needs to be connected to a low voltage, which is not common with the 110V or 220V. Warm Tips: These are low-voltage lamps. Please confirm the voltage of your home equipment to avoid unnecessary trouble when you choose the products. Specification: Switch: Button Type / Toggle Type / Knob Type / Touch Type Size: Button Type / Toggle Type / Knob Type: 60x30mm / 2.36''x1.18'' Touch Type: 80x30mm/3.14''x1.18'' Voltage: Knob Type/Touch Type: DC 12V Button Type/Toggle Type: DC 12-24V Application : kitchen / bedside / reading desk / RV / caravan / truck / boat etc. Feature: -Suitable for Caravans , Boat , RV , Bedroom , Reading Desk etc with 12-24V Input. -The head of spot light can be rotate 180 degrees. -Perfectly light up your bedside, reading desk or where a multi-angle illumination is needed. Package Included: 1 x LED Spot Reading Light 1 x Set of Installation Screw Notes: -Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. -Please allow a little difference due to manual measurement.