10-18-2018, 09:12 PM
They do if you get them on a module like the other relays. If you use just an SSR you might need a circuit, it depends on the SSR, some have this built in.
https://www.ebay.com/itm/5V-1-2-4-8-Chan...:rk:6:pf:0
https://www.ebay.com/itm/5V-1-2-4-8-Chan...:rk:6:pf:0