Auraglow MR16, MR11, G4 LED Light Bulb Driver Transformer 12w This LED driver from Auraglow is all you need to use low voltage LED light bulbs such as MR16, MR11 and G4 bulb types. Normal transformers used for halogen light bulbs generally have a minimum load of 20 watts and most LED bulbs are well below this from being super energy efficient. A qualified electrician should be used to replace the transformer with the LED driver if you are not confident to do it yourself. style="mso-bidi-font-weight: normal">Specifications This LED driver will power up to a maximum of 12 watts and is non dimmable Ideal for low voltage LED light bulbs such as MR16, MR11 and G4 220-240v AC Input, 12v DC output CE & RoHS certified Size: 20mm (H) x 90mm (L) x 40mm (W)