First thing I do when deciding what RC switch to buy (or build) is to run a test to determine the max continuous current the switch must handle for the load I have in mind😉
Second; is the control element on the TX a simple ON/OFF switch or a three way ON/OFF/ON switch? The latter giving the possibility to control two special functions😊
From your query "or do I need a relay type ?" I construe that the Turnigy switch uses FETs for the switching output.
Personally I generally prefer encapsulated relays for such purpose as it eliminates even the small voltage drop across the transistor and reduces heating effects when operating high current loads. Which takes us back to the first thing I do😉
Using encapsulated relays eliminates the contact corrosion which plagued the early open relays😊
If your TX has (or can be retrofitted with) a three way switch I can heartily recommend the Action Electronics P91 Dual 10Amp switch, which would give you the option of a second fun function😁 Data sheet attached. Get 'em here -
OK, so it uses FETs not relays, but they seem to have very low ON resistance and I've never had heating problems with them👍
Cheap alternative, which needs a bit more work and hull space, would be a servo with two micro switches mounted on top. Check the current capability of the microswitches before you part with the spondulucks!!
See attached pic , from my Sea Scout as dug out of the cellar after 25 years neglect! One microswitch was connected to a piston pump!
The other to a siren, both of which were experiments but did sterling service as kiddy's fingers deterrents when the boat was on the water close to shore or on the table next to the lake!😁
Looking forward to the action vid😊
Cheers, Doug 😎