Day light lamps

Hi I was wondering if anyone on the site could help me with this inquiry...the only spare room I have in our house is North facing and at present I use if for my digital darkroom for photographic post processing, I would like this room to double up as a suitable art workshop/studio... The room is great for computer work but is useless for artwork/painting owing to the lack of light, I have considered hanging a daylight bulb from the ceiling but I don't think this will be strong enough also it's not the safest way.. As I have mentioned in other threads I have limited funds so I don't wish to go over board with purchasing an expensive set up, so perhaps one of you may have a good idea so I can then shut myself away in peace doing my painting etc as at the moment it's the only room in the house that hasn't got a dreaded TV in it, only relaxing music is played in this room and there's a good lock on the inside of the door therefore the room is not accessible from the other side... Oh I forgot to mention I have a small fridge and coffee making facilities so I can get away from all the soaps my wife likes to watch..... (lol) (lol) (lol)