Ordered, different supplier though. That amazon seller does not ship north of the border. Wiring should be straight forward.I used 4 Phillips 3 watt (4 LED per bulb) lamps, wired them in parallel to this dimmable transformer : LET-75 12V AC Class 2 Electronic Remote Transformer by Lightech on Amazon....
The transformer is dimmable on the input side so I installed an "electronic" dimmable controller to vary the 120v input, thus controlling the light output. Works perfect!. Try to go with an electronic transformer as the old style magnetic ones are bulky and by code not used any more. The 75 watt transformer has been running strong with NO hum or any issues what so ever. I notice that there is little to no heat in the case now and having it at its lowest dimmed setting brings out the lens colors much more.....Make sure you use an electronic dimmer with the electronic transformer. The above transformer is small yet packs the needed output. Remember its 75 watts and if your using LED's then they should be 3-5 watts each, you have more then enough to run them..