This product is mainly used in the medical and hygienic units as well as the industrial section of food and medicines for the air sterilizationWavelength of ultraviolet rays: 253.7nm . Voltage: 220V 50Hz Power: 2×30W The adjusting angle of the lamp arm: 0°～180°This product can be used alone with double light tubes, and the angle of the lamp arm can also be adjusted. Please close the safety door when it is not in use in order to avoid the damage of the light tube and also maintenance of the cleaning of the tubes. The timer can control the sterilizing time within 60 minutes. And the circuit will be automatically closed when time is up. Every part of the truck should be tested beforehand in order to check whether it has the problem of leakage of electricity. And three-pins plug must have a land wire in order to avoid the electric shock. Please cut the electric circuit after the truck is used and then withdraw the plug from the socket.Please take out the sterilization truck from the packing case. Please place the base and feet wheel on the ground first, and then put the truck on the base, after that, the screwnall hole of the truck should be coincident with the screwnall of the fixed iron sheet and connecting iron sheet. Please take out 8 pcs of screwnails (5mm) from the small square door of the wheel and fit them on the truck. And finally the truck and the base should be fixed together.