Install 94 feet of perimeter lighting around a kitchen/dining/living space. The desired product is a color tunable LED strip. Possibly this product but I could use an equivalent product if needed. These things come in 16 foot lengths. So I need 6 strips to cover the installation.
I have roughed in seven 16/4 CL2 rated wire to the top of the wall at locations where each 16 foot strip would start. The led strip product indicates that two strips can be chained together, but that seems like a voltage drop risk, so I ran a separate wire for each strip.
High frequency > 25kHz PWM dimmers are the only acceptable option for this requirement. We tested the 500hz LED dimmers and they had noticeable flicker at low light levels. There are several DMX decoders that meet this need. For example, this product.
Here is where the going gets tough. How do you meet class 2 power supply requirements for the installation of these products? NEC 725.121 "Power Sources for Class 2 and Class 3 Circuits" seems to require a listed class 2 power supply. Does that mean I need six separate class 2 power supplies, and six separate DMX decoders... One for each strip? That seems wasteful as a single DMX decoder is capable of 8 amps per channel and could power the entire set of 6 strips by itself.
Are there any other options for a compliant installation?
Note The (4) and (5) options of 725.121 are Information Equipment, and a dry cell battery. Neither of which meet this need.