... · TO-5, TO-18, TO-46 the tiny standard package, the size of the photosensitive surface have 0.25x0.25 mm, ... )· Anti-radiation type, with long-term stability under conditions of high-intensity ultraviolet radiation,· With a lens type, with very ... water treatment as well as the application of surface disinfection, the ultraviolet light source control· UV cure applications, the light source control· UV ...