Aurora Lighting AU-E105w Transformer is a premium electronic low voltage transformer for use with downlights. It is fully dimmable with resistive and inductive dimmers. It can run 2x50w MR16 Lamps or 5x20w G4 Halogen Capsule Lamps. AU-E105 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.