when you blow air "into" a closed or confined space, you actually heat the air, not cool it... to test this, make a loose fist, cover your mouth with your thumb and forefinger while keeping a fist and blow into it - you will feel your hand become very warm... it's not because your breath is warm, it's because air is being compressed
additionally, fans blowing on something serve no purpose, unless it is something that can a) sweaat b) benefit from the psychological effects of feeling 'cool air'
house fans, air conditioners, etc, all take advantage of a human's ability to sweat and to feel the brush of the cool air ... but an inanimate object like a light bulb, would be better served by moving the air around it away, rather than forcing more air into the space around it.
by having all your fans blowing out, you create a low pressure enviroment... this will insure fresh air finds its way inside
also, lower pressure = cooler air ... the more air you get moving out from inside of the canopy, the cooler it will be inside the canopy, as the air left inside will expand to fill the gap (taking heat with it), and fresh cooler air from the room will also be rushing to get in there.
sorry if this sounds like a college lecture or something