If the batteries are AA's usually even nice solar lights use really crummy batteries many are under 1,000mah and will run the lights maybe one night. I had the same problem with 900mah batteries and replaced the batteries with energizers which are around 2500mah and have enough capacity to run more than one night on sunny days which allow them to still hang in there after a dreary day. I would replace the batteries with better ones for one light or two and compare. I have since purchased more AA's off Ebay in the 2500mah capacity for other items as they are much cheaper than energizers. If you have a charger I would charge them before putting them in.

Hi Ken, Wow, four years, it doesn't seem possible. Well, it didn't work out; and I was still trying to resolve it up to this spring. My wife simply buys new lights when the others die; that was our final solution. I've read up on it, and the failure of rechargeable outdoor lights seems to be a complicated issue ranging from solar panel failure, to corrosion, to battery failure, to fogged over panels. My sense is that the industry puts out a crappy product, with a shelf life of a year or two, and is not repairable, in the hope that people will buy more. There may be good ones out there, but they probably cost a lot of money. ..... john

I suspect you're unlikely to find what you want. Why? Based on my observation of solar-powered lights on bicycle paths, the solar panels have to be large (to generate enough electricity to charge the battery during the day) and the batteries have large (to store enough power to operate the light all night). With all this, you'd have an ugly residential pathway light! Fortunately, there are some great low-voltage path lights made or sold by Tech Lighting and Ylighting (and others, I'm sure). I'd get Dark Sky lights to illuminate only the area needed, avoid shining light in anyone's windows, and reduce light pollution.

If you’ve recently replaced the light bulb, the problem may be the sensor or the bulb/array. I’d contact the manufacturer for troubleshooting and replacement parts.