quick note, just need a little advice.
I'm torn between choices, and the difference in price is the IRR differences. TSER value seems to be a slight difference. Just don't know if the difference is worth the price.

RhinePro XD5 6mil - RM1100
UVR 99%
VLT 60%
IRR 90%
TSER 56%
VLR 22%

Sahara-X Safety IR Mystery Black 5098 5MIL - RM1500
UVR 99%
VLT 50%
IRR 98%
TSER 60%
STRENGTH above 126LBS
color: black

Sahara-X Safety IR Mystery Black 5095 4MIL/6MIL - RM1388
UVR 99%
VLT 65% / 50%
IRR 95%
TSER 56%
STRENGTH above 126LBS
color: natural blue

After reading the current post. My opinion is

a) When choosing the good brand, make sure you install the original product, not the "house brand", do more research on this issue.

b) None of the window film brand can cool your car while parking under the extreme hot sun more than 1 hour. If your current tinting film can keep your car not hot within 1 hour parking is actually good enough.