It is suitable for use in the following situations: 1. Professional glass repair shop to improve work efficiency; 2. Repair and curing under no sunlight conditions such as at night, indoors, and rainy days; 3. Repair and curing of glass inner layer damage.How to use: 1. Push the switch forward for the flashlight, and push the switch backward for the ultraviolet light. The middle is closed. 2. Turn on the UV lamp, close to the cured film, and the initial curing of the repair solution can be completed inabout 1-2 minutes. If there is too much repair solution, the time can be increased as appropriate, and the actual curing shall prevail. 3. Pay attention to the positive and negative poles of the AA battery. If the light is dark, replace the battery.4. Use 4 AA batteries to drive (alkaline batteries are not recommended, ordinary carbon batteries are required)Delivery Quantity: 1pcPackage Contents: Only the above package contents, excluding other products.Size: 16.5*6*2.8cm(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Colour: Black(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)