UV LED device is not working correctly for quiet analysis

ⅠThe trouble cause by supply power problem
This poles are the key components in a supply power. so the battle line is not allowed to access anti-Line. If the multimeter is used to measure DC voltage or DC carnet, we must be careful that the polarity is not reversed.
please exchange poles at once if not the direction might be wrong;

ⅡSomething is wrong with the uv led module
The uv led module need by strengthening the final inspection and testing to ensure(yet that is exactly what our QC often does. good quality of uv led strip need professional manufacturer).
if didn’t stick product religiously will get into trouble. These are common problems:

1：Iron bracket make heat conduction poor cause the temperature of plate higher, in here we suggests using a copper bracket. In experimenting we find out that the efficiency of white LED using copper brackets is higher than iron brackets, moreover, the light decay is lower about 10%.
2: Epoxy resin etiolated
3: Not compact or dense in led core and led bracket
4: when led core quality is poor, the more the loss of optical power will be