wow... a plug-in in the closet...that's handy..:thumbsup:

Are you going hang the light from the clothes bar? I had to raise mine some; using a 400 watt HID light. That tapered roof could be a problem? The light fixture will be about 5 feet high or more by the end of the grow; unless you keep the plants short. Check for clearance of the reflector.

Will the door be open or closed?...when the light is on? Ventilation is the most common problem. I recommend testing everything before starting.

Enjoy your grow