@DojaGrow Have one oscillating fan dedicated to blow on the light since you can’t mount driver outside of the tent.
Do you have just one exhaust/intake fan? If you only have one fan use it as an exhaust fan and do the passive intake like you have. Just have to add another oscillating fan to circulate air around the plants under the light too.
If you have two intake/exhaust fans that are adjustable using a positive pressure system helps a lot when you have low temps outside and high temps inside. Set exhaust fan to run on low up top and intake fan to run on high at the bottom. The forced cool air coming in will help with air circulation and force the warm air up top by the light and exhaust fan.