The Monorail Mini ELV Surface Transformer is designed for use with the Tech Lighting Monorail system. Its small housing offers a minimalist look, and it can be used with 2 inch or greater standoffs and a power extender. It is compatible with LED and halogen 12V pendants and heads, with a 250W capacity for standard halogen/LED lamps and 75W for integrated LED modules. It can power up to a 60 ft run of Monorail when fed from the center. Mounts to a standard 4 inch junction box with a round plaster ring (not included).