I'm sorry, but we don't do DIY questions here at ECN, you need to engage the services of a qualified Electrician.
Even so, anything in a wet area needs to be permanently connected, with cable glands for the inlet and outlet sides and sealed to IP55 at least.

Silicone sealant is available in neutral-cure as well, Texas-Ranger, that acid stuff is only for roofing and sealing around plumbing exposures.

{I will lock this thread in 3 days}

Trumpy: I just locked this out, if it's OK with you. (John)

Last edited by HotLine1; 11/14/18 01:46 PM. Reason: add page info