Hi there, Been looking through renotalk for quite sometime and hope someone can help me out on this. What's does looping mean? Is it 2 lights will on within 1 switch? Also understand that there's a few thickness wire for the electrical. which wire is for which one? 1. 1.5mm - Lighting 2. 2-2.5mm - power socket 3. 5mm - air-con Also for connecting a new switch for a lighting point meaning i need 2 1.5mm to connect them from the main power point then link to the lighting then link to a switch. Am i right to say that? Also how can one conceal the main point after shifting from the main point to the second point? (sealed and patch up the holes? But there will be trucking right from the main source since it's start from there?) I know this is very 'on hands' topic..but just want to know more how electrical really works. Appreciate anyone able to enlighten me on this?