Had to replace burnt out transformer (35 -105w) running 3 bulbs. Ended up fitting 3 of these as rating would not run 2 bulbs (very dimm) but work great each one with 50w 12v halogen. Still worked out cheaper option.
LED Transformer LED Power Supply 45W 12V DC Waterproof IP67 100-240V AC Input LED Strip Module Driver LED Supply Driver LED Low Voltage Transformer for LED Strip Lights and MR11, MR16 G4 LED Bulbs. 3.6 out of 5 stars 4.