QB288 upgrade advice

Hiya
I used a Kingbrite QB288 v2 in my last grow, 60 x 60cm and managed 1.5g/w which is ok. Started thinking about upgrading, what yould you choose?:
1) Supplement my QB with 2 x https://www.alibaba.com/product-detail/KingBrite-LED-Strip-Light-Samsung-quantum_62435851818.html?spm=a2700.icbuShop.41413.11.78b516d84atEJx
or
2) sell my QB and get a HLG 288 R-spec (which are $80 at the mo)
I havent really worked out costs but just on performance, which would perform better?
Cheers

Honestly I'd recommend more kingbrite kits over the HLG Rspec. I prioritize cost efficiency but if money is no issue by all means spend more. But $752Cdn for 4 240W kits shipped to Canada for myself is hard to beat through kingbrite. An Rspec is $1200+Tax here. Double the wattage, similar efficiency and half the cost. Just my 2cents . Not a bad thing to say about the Rspec though.