UV-A LED module 3W led UVA 365-370 nm USB 5V UV PCB board

UV-A LED light module, UVA LED module 3W led UVC 365-370 nm,  UV-A PCB board
Input Voltage: DC 5V not need extra driver best for USB power
Output Power: 3W
Beam Angle:  110±5 Degrees
395-400nm UV-A LED chip
Demension: 20MM 

Blacklight UV-A 365NM LED light
Blacklight lamps are not to be confused with the blacklight blue type described above. While they still fall into the same UVA bracket on the ultraviolet spectrum, the slightly shorter wavelengths (between 350-370nm) result in very different effects. Common uses for these light bulbs include:
Bug zappers (the UV light attracts bugs)
Suntanning
Polymerisation
They emit a mixture of ultraviolet and visible light and will appear to glow a luminous blue colour when operating.