Working time counters can be used both in NBV and NBVE series of UV-C germicidal lamps *. With these counters, you can easly control the UV-C bulbs working time. You can add this counter to earlier purchased lamps (NBV and NBVE single purpose) in ceiling-mounted and wall-mounted version.

*For dual purpose (two functional) UV-C flow germicidal lamps, we do not recommend this counter as it can only be connected to one function. We suggest ordering a lamp with pre-installed mechanical counters- the symbol "L".