lighting fixtures

Hey all, We are just getting our first set or LED wash fixtures in our plot. Martin Rush Par 2 Zoom. I have surge protection on each circuit, but no simple way to turn them off at the end of the night. we looked into the ETC relays, but can't swing the cash after the layout for the Martins...

What is the difference between these two products? What is their best feature of each of them? what else should I know about these?