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
I spent a while looking how to configure an HP to interoperate with a Cisco switch using VRRP. While doing this, I found that HP likes to use the physical address of the Primary router as the virtual IP address. This wasn't something I was entirely comfortable with, so I wanted to find how to NOT do that. I found this guy's webpage http://crackedtech.blogspot.com/2012/11/hp-procurve-vrrp-with-different.html