USB port power supply, mobile phone power bank, adapter plug, all can be used. 7W brightness Adjustable to three color temperatures The fill light can be screwed directly to the thread in front of the lens, and can also be used in front of the UV Light source:LED high-definition white light beads Color temperature:three color temperatures with adjustable brightness Thickness:about 8mm Wattage:about 7 watts Power supply:USB interface mobile power supply Lamp body:thickness about 8mm Switch:can control the brightness of the light source Diameter:threaded 49mm Colour:As Shown Material:Plastic Package Contents: 1 * Fill Light Only the above package content, other products are not included. Note: Light reflection 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.