Today, I tested the performance of our prototype UVC-Rack with UVC strength meter in order to set the switch-off timer for the hospital usage. Conclusion; at longest 30 sec lighting make all object's surface being sterilized up to 6mJ/cm^2 in this prototype. The least point of lighting is the situation in the picture "UVC PC-Display" on the wall side of PC display back with 90 degree angle from the UVC plane. The worst situation need 26sec to get 6.3mJ/cm^2. Most points need only 4 to 10sec to get 6.0mJ/cm^2 though. Performance wise, this system with 20W * 6 UVC light tubes is enough for hospital daily usage.
I would like to check if this lighting system produces ozone with ozone meter next week.