Revisiting an old thread for an update. Might be worthy for someone contemplating lighting.
We've done many seasons with the solar walkway lighting on plastic poles. They work, and with the right ones they work OK and we just plan on throwing them away every year. They could probably last most people quite a bit longer, but ours get blasted by gravel kicked up from heavy airplanes trying to leave, and hosed down regularly by the kid in the water truck who didn't pay for them.
This year we decided to try something new.
Discalimer; I don't work for Sporty's, have never shopped there in the past, and may or may not shop there in the future. I also read several dismal reviews, but common sense and logic puts many of those in to perspective, so I rolled the dice on these. They are spendy compared to walkway lights, but appear to be more robust in pretty much every facet. The batteries are larger, and the PV panels appear better. So maybe no more expensive in the long run.
They were out of red, and although they charged my card, they failed to let me know they were on backorder. Strike one, I am a stickler for good customer service. An english speaking rep answered the phone and made things right when I enquired, so I moved on.
If you are a low time night flyer, they will be better than nothing, but you can probably only count on picking them up from a couple miles. On final they are quite sufficient, and they provide enough ambient light to make taxiing a tail dragger a non event. Just don't plan on seeing them as far out as the lights at KLAX
Here's what they look like at 0430 ish, after being on all night. Not too shabby.

And here's a link to where I got them.
https://www.aviationgifts.com/solar-powered-runway-lights-white-set-of-6.html?gad_source=1&gad_campaignid=22042390023&gbraid=0AAAAADvhkW3Pk_sbPh2Czrj1Y9GwOpm-b&gclid=EAIaIQobChMIl9uOieOslgMVOCdECB34vwlfEAQYASABEgJcfPD_BwE Take care, Rob
In edit, the little stakes they come with make it clear that these are intended for decoration puposes. We ditched those and retained our 2" square plastic poles at ~32". The reflective tape is about 5 years old now and could use a freshening up, but over all this seems like a pretty worthy set up for someone with frequent night ops off grid.