High-Intensity UV lamps are code compliant UV-A inspection lamps producing over 1,000 and under 12,000 microwatts/cm2 at 15". They consist of LED and legacy Mercury Vapor lamps.
Note: Some aerospace codes are now stipulating intensity requirements between 1,200 and 5,000 microwatts/cm2 at 15" for fluorescent penetrant testing on critical components.
Click on the link to read more about HID and LED lamps - HID vs. LED