A nice touch is the auto-off and timer, and you can set them to match your schedule almost perfectly.
80/60Amp 12V 5-Pin Relay Kit, SPDT 12-Volt Automotive Relay with Heavy-Duty Pigt
What stands out about this part is how the 4RD00779404 model is easy to find in the manual too.
What stands out about this model is the 70*20*18mm / 2.75*0.78*0.7" size for tight spots.
This simple unit carries the Square D name, and that gives it a sense of staying power.