The MMC192405 Power Canopy, part of a complete family of canopies from Auroralight, machined from solid brass. It is a junction box that conceals an electronic transformer. The MMC192405 is designed to fit all STANDARD: 3″ or 4″ round, flush-mounted electrical service boxes. The MMC192405 adapts from line voltage feed (120v) to many of our low voltage (12v) fixtures and most 12v fixtures from other manufacturers. The MMC192405 is compatible with many box sizes and utilizes a STANDARD: 1⁄2” (NPS) Universal Thread for near limitless compatibility. Featuring our proprietary screwless mount plate, the MMC192405 eliminates twisted wires and visible screws to make installation fast and neat.