Kingbrite extension cable for lm301h send help!

[sevare]

I need help finding an extension for my LED light listen below

2021 Newest Pre-assembled Kingbrite 480w lm301h V4 QB288 led grow light kit

i contacted kingbrite and they referred me to a extension that they sell for 5$ Listed below

KingBrite 3 meter extension cable to mount the driver outside of tent for samsung lm301h led

but I don’t want to pay $50 for shipping.
does anyone have a wire I can buy off amazon or something? I googled all over and can’t find a concrete answer. I really don’t want to have to buy it off kingbrite or cut the wire and do it myself PLEASE SEND HELP

 

[MilkyTrichomes]

I’m running hgl 260’s. I took the pwr supply off the heat sink and mounted it outside the tent. I used 16 gage stranded wire and wago connectors. I’ve heard growers using an old extension cord. I don’t believe there is a “special wire”, any #16 wire should work.

 

[Ponky]

I mean the industrial supply store or electronics supply distributor will most likely have that. But most people don't have one near them. Or alibaba
https://m.alibaba.com/product/1600283904675/detail.html