Aurora Lighting AU-150w Transformer is a premium electronic low voltage transformer for use with downlights. It is fully dimmable with resistive and inductive dimmers. It can run 3x50w MR16 Lamps or 7x20w G4 Halogen Capsule Lamps. AU-150w transformer also comes with a ten year guarantee. Other features include a loop in, loop out primary wiring terminals, auto thermal reset protection, integrated earth terminals for earth continuity, no junction box required, secondary wiring terminals - 3 outputs, max load on one output 105VA.