Thermal or Radiant
Bench testing of fluorescent or HID ballasts - elevated ambient or UL-1598. Testing includes items like ballast "hot spot" and lamp "bulb wall" temps.
Fluorescent fixture temperature testing per UL-1598
Incandescent temperature tests per UL-1598 including "IC" prequalification
HID full temperature testing to UL-1598 (or elevated ambient) includes average coil temperature by resistance change.
Portable fixtures can be tested to UL-153
as well as many others available.
Fully equipped laboratories can perform:
Lamp voltage rise
Ballast and lamp characteristics:
Ballast light output rating (ballast factor)
Open and short circuit performance
Current and voltage wave forms
Lamp flicker index
High frequency measurements
Emergency lighting prequalification UL-924