I need to replace a broken colorlogic LED light in my spa (one of the LED banks died). I know I need to remove the old one and fish the new cable to junction box. My question is what do you need to do if anything to seal the connection in the niche housing where the wire goes through? Do I need to seal with silicon or is there a rubber boot or something? I think the niche is a pentair niche and I am using a Hayward colorlogic 2.5 spa LED. Also not sure if it matters but it is a 120V version of the light. Any help would be appreciated.