The most amazing grow system u will ever see!!

[stinkyattic]

im assumiing the power to my garage is running on a/c because there is one mains cable coming into the garage directly connected to a double socket.

House wiring is AC.

so if i turned off the mains, spliced the wire in between the 2 ceiling flrs and connected a socket, would i be in business?

Don't do this. You have 2 choices:
-Run a HEAVY extension cord to power your lights
-Call a LICENSED ELECTRICIAN to wire you a nice safe grow.

If you burn your house down by growing pot on an unsafe circuit your insurance will not cover it!!!