Aquariums: Light recommendations in Australia

Hi all, I’m looking to upgrade the light for my aqua style 850 tank (80cm/31inches long). I’m not sure how much power the in built light has but some of the plants as you can see are leggy and losing any red colour.

I’m not sure if it’s possible to replace the existing unit with a higher powered light so I was thinking of removing the front part of the hood entirely and leaving it open instead.

I’ve done some research into lights but many of the reasonably priced and recommended on these subs (Hygger, twinstar etc) are either not available or expensive here in Australia. I’ve looked into the Chihiro A Series 2 but I can’t find the 80cm in stock so would either have to go with 60 or 90.

Would love any recommendations/thoughts, thank you!