... Specification:Voltage: DC 6V, you can use 4PCS dry battery or use the Adapter which is stochastic with the ... UV Lamp.Size:Weight: (without the dry battery)Power: 4WStochastic fittings: Adapter 1PC, 4W Bulb Tube ... 1PC Usage:1. Usage of the dry battery: Please open the cover at the back of ... the UV Lamp, put the 4PCS dry battery in, and turn on the switch (please check ...