We replaced the original solar film that came with our place as it was old and peeling.
I got a few quotations and decided to go with
Zenith Ceramic 70. This is supplied by http://zenithfilms.com.sg
I could not bring myself to pay more for 3M or V-cool with similar specifications. My selection criteria was based on the best value I could get for visible light transmittance of around 70%. With removal of the old film, we paid $1,650 for our entire place.