These: https://amzn.to/3FoGFQQ which I have mounted in my 20x20 dog pen. They light the whole thing up brightly, and I've tested them after about 11 hours and they were still bright. I also have these on my fence lining my driveway. https://amzn.to/3tskRRQ
EGO Power+ PST3040 3000W Nexus Portable Power Station for Indoor and Outdoor Use Battery Not Included https://amzn.to/3xrwUB0