If installed outdoors, the Intermatic TN111RM40 is to be installed in this Type 3R outdoor case. Is yours installed in this case? That timer just plugs in and the cord connected to the lights just plugs into the timer, right? You could replace the Intermatic TN111RM40 for $18. Or you could try this Kasa Outdoor Smart Plug or meross Outdoor Smart Plug (or many others) if one of them would fit inside the box. $20.

That Haven Stratus is a $300 low-voltage transformer. If you're using the Intermatic timer, the transformer must be after the timer or the lights are 120 volts.

I had those same old timers working my deck and walkway lights. I replaced them with Kasa Outdoor Smart Plugs. The Kasa app is easy to use and the WIFI connection went smoothly. They have 1-socket, 2-socket and dimmer models. I highly recommend.

Thanks! I bought this and it seems to work great. It doesn’t fit in the case I have but is hanging underneath. Do you think I need to cover it from rain? If so, do you have a recommendation of a good way to cover?

For the Kasa