I'm installing some LED strip lights for an indirect lighting system. They are driven at 12V, in parallel, with a total load of about 60W (about 50' of lights). I would prefer to use a concealable transformer, and hide it behind an access panel. I don't need to be able to dim them. I have found some drivers that claim to be specifically for LED applications, but am wondering if I can use a transformer for a 12V track lighting system? I suppose it depends on how the rectification is done in the transformer, but most manufacturers don't list it, and few also list the efficiency of the unit. Any recommendations on the subject, or pointers to suppliers of drivers? thanks, Roy.