How to Use: 1. Assemble the accessories. 2. Insert the USB cable into the interface, press and hold the power button to turn on the light. 3. Each press can switch the light mode, +, ‑, you can adjust the brightness. Specification: Item Type: Circle Fill Light Material: ABS + Brass Cable Length: Approx. 1.9m/6.2ft Diameter: Approx. 26cm/10in Lamp Beads: 120pcs High Brightness LED Lamp Beads Light: Yellow, Light Yellow, White Package List: 1 x Circle Fill Light 1 x Tripod 1 x Phone Clip 1 x Fixed Knob Note: Manual measurement, please allow some errors.