I am installing a light in my basement and need some help on the installation. I know that all splices have to take place inside a box however I need to attach the light to a wood beam running down the middle of the basement. I can not put a box in the wood however I can put the box above the wood and drill a hole through the beam for the wires to run in. I guess as long as the wires from my fixture are long enough to go through the hole in the beam and be spliced in the box I am ok, just need some advice on this. Attached is a pic of what I hope to do.