Any brand transformer can be used, provided the voltage and wattage match for the application. The only downside I could see is possibly voiding the warrantee of the fixtures (if they specifically state in the small print to only use a Westinghouse transformer). Other than that, it'll work.

I just commented on you're other post about the bulbs and sockets. Anyway, it looks like you're looking to retrofit the cans to accommodate LEDs. It might just be an easier (and possibly cheaper) option to go buy four new LED remodel cans and replace the four you have, than rip out all the guts (transformers and sockets) and replace them with new LED drivers (if you can find ones that will fit in the can housing) and sockets. Just sayin'. Sounds like you'd have to pull out the existing cans to do all that anyway.

Hi folks - I'm posting this message in the 'Lighting' and 'Landscaping' forum with the hopes of clarifying something I don't have too much experience with. I'm in the process of constructing this 2-post pergola on the side of my house. I'm incorporating 4' tall cedar planter boxes at the base of each post, which allow me to grow climbing plants in. I currently have a 'VOLT' low-voltage transformer plugged into a GFCI to the left of pergola (as depicted by that black arrow). I have two low-voltage lighting fixtures that currently feed into that transformer to light the front side of house. I eventually want to add two additional low-voltage fixtures to provide uplighting to the two pergola post. I drew white Xs to represent the locations of those two additional spotlights. The problem I'm facing is that there's only 1 available clamp connector inside my transformer. I assumed that I could only plug in a single fixture into each clamp connector. I read somewhere that I could actually plug in multiple wires into a single clamp connector. It sounds dangerous, so I just wanted to post the message to get feedback from people that understanding lighting better than myself. Thank you kindly!

Volt, understood. I think it would be pretty cool if you did LV pier mounts though... They’re hard to find and more and more people are moving to LV systems. I think you could sell them for much more as well. Maybe a bit more challenging for DIY, but many folks, like me, are working with contractors on a bigger job and this type of install is no problem. My plan now is to buy a normal line voltage fixture, put in a low voltage bulb, and wire it up to my Volt slimline transformer. Fingers crossed. Lastly, I saw this from Cascade Lighting website: “Our customers often ask if we offer 12 volt post top or column mount lanterns. We are happy to answer that any post top or column mount lantern with a medium base (A19 – or Edison screw base) socket or the smaller candelabra base socket may be installed with a low voltage 12 volt system or simply alone. The secret is that the lantern socket solely depends on the voltage of the lamp installed and the voltage to the lamps. There is no need for a “conversion kit” to turn a 120v fixture into a 12 volt powered fixture. 12v Post Top and Column Mount Lantern Lamp Choices If you are installing a lantern and want it to operate as a 12 volt system, you would first choose a 12v incandescent or LED lamp to fit the lantern socket type (medium base or candelabra). There are various wattage output options available and in stock at Cascade. The next step is to connect the lantern wire leads to the proper direct burial low voltage cable size (to fit the job) and then connect the cable to a professional grade magnetic landscape transformer. “