According to their instructions, you can splice the hook up wires and run them directly to a transformer. Back in 2018, after reading something on the forum, I asked WS directly if I could run them on my 14 VAC landscape transformer and this was the response:
Thank you for your interest in our products. Your power source should be 16-20VAC or 24VDC. As long as you do not
exceed 20VAC or 24VDC. If the voltage is lower it may not be enough power to light the building.
Have a wonderful day!
Sincerely,
Ricki Kronk
Ricki Kronk | Marketing/Sales Consumer Service | (573) 346-5555 x323
WOODLAND®
Woodland Scenics ● PineCar ● Scene-A-Rama
PO Box 98 Linn Creek, MO 65052 | WoodlandScenics.com