Instructions: 1. The Phosphor plate is composed of phosphorescent layer, plastic base layer, protective film, and specification film. 2. Please use a barrier envelope before use. In order to prolong the life, do not touch the phosphorescent surface with your hands or any equipment, and do not press hard. If you use a holder to shoot, please open the clip with your hands to allow the phosphor plate to enter and exit freely. 3. Please do not bend the phosphor plate excessively in an instant, which will easily accelerate the aging of the phosphorescent surface, and the surface specification film will wrinkle (the specification film can be torn off and it will not affect the use). Cleaning method: Please use an alcohol-based detergent to gently wipe and dry with a lint-free cloth. If necessary, clean it every month, or if the phosphorescent surface looks foreign or excessively dry, it needs to be wiped. Do not touch it with water. And any organic solvents. Transportation, storage and use: 1. Transportation and storage conditions, temperature: -20~60°C. humidity: 15~80%. 2. Operating conditions, temperature: 15 to 30°C, humidity: 15 to 75%.