What one is the heavy duty build and the handy indicator light.
AROMAT AP312798 7A 1/6HP 125/250VAC 3A 30VDC HC2-AC115V RELAY QUANTITY!!
A nice touch about this unit is the Dold name, which sits cleanly and helps you keep your inventory aligned with a known maker.
A nice touch is how the power relay slots into standard sockets without fuss.