1. Plug in the power socket, turn the O/I switch to the I position. 2. Put your hands or feet into the body, and press the square button at the back of the body. The body will start to light up. (This light has two gears: long on and timing, and the timing is 120 seconds. The black button on the upper part of the light has three gears, the middle circle gear is stop, the first horizontal bar gear is long on, the second horizontal bar gear is timing, the red switch It is the timing button. The black switch is at the timing of the second horizontal bar, and then press the red button again. The light is on at a fixed time, and the light will automatically turn off when the time is up.)ReminderThe lamp must be inserted tightly. If the lamp is not tight (the lamp is not on, the lamp is flickering, the lamp is loose, etc.) the light of the UV phototherapy lamp may be white, with a wavelength of 380-390nm (the wavelength belongs to visible light, which is harmless to the eyes, but it is recommended not to look directly at the lamp for a long time. Tube)