Lux Meter

[zulu_principle]

I just purchased a LUX meter and am extremely surprised on the different reading for some of the bulbs within my fishroom.

The biggest surprise is the reading from VHO bulbs......

[BCOrchidGuy]

Please elaborate... numbers... age of bulb.. I want to rent a quantum light meter but can't find anyone who will rent it to me.... I would love to do a study over say 18 months and get spectral analysis of MH VHO and PC's

[zulu_principle]

I will once I have the data correlated and in some useful format.