TheJabbaWookie said:
Do you have a link to that particular one please?
Sure. I bought it from eBay seller called 'solar-guard', and the direct link is:
https://www.ebay.co.uk/itm/Anti-Fading-UV-Protection-Window-Film-Clear-Heat-Rejection-Sticky-Back-Plastic/291329751781
As you will see, they do several different types of film. I chose the 'Clear UV' because I didn't want a tinted window, but did want to drastically cut UV. However, I had always intended to also use curtains in that room and to keep those closed as a 'belt and braces', so I can't honestly report on the product's effectiveness, only what it is supposed to do. Also, I bought mine in 2016, and I'm afraid I had forgotten the exacts specifics of each different film, so make sure you read the description to choose whichever one is best for you
It's also very important to note that whilst these films block almost all UV, if you leave items in direct sunlight, they will eventually fade, even with the film; it will just take a lot longer.
The same company has a website selling the same products for the same prices (http://www.evowrap.co.uk), and I actually bought an installation kit from there to do mine, although to be honest, it's not very good value, so take a look at what comes in it to see whether you already have the necessary bits and pieces:
https://www.evowrap.co.uk/basic-window-film-installation-kit
Good luck, and let us know how you get on!