Just looked up the specs of what I’m doing…I edited my post as you were replying. Haha. I’m gonna go with a 70 (meaning transmits 70% visible light). But heat rejection is like 50-60% if I remember the specs. I do the same film all the way around.
Xpel XR Plus 70. Transmits 67% of visible light, and transmits 35% solar energy (heat). So it rejects 65% heat.