All are 12 volt, voltage regulated circuits. I secondly recommend that your power supply be a circuit protected power supply. Circuit protected means that if you introduce a full short across the unit, it will shut down but can be reactivated simply by unplugging it and plugging it back in. CR2S sells only DC regulated power supplies: One 1 amp (12 watt), One 2 amp (24 watt) and one 6 amp (72 watt) regulated power supplies. Unlike the older transformers, you can buy a larger, more powerful unit and not worry about your lights burning out. All of these power supplies put out a constant 12 volts and all are UL and RoHS rated and approved.
Handles up to 26, 40 ma. lights