ElevenBravo: "Least we forget, a decent deep cycle/gel cell battery, panel and charger and small inverter... running strings of LED Christmas lights works really well, lower cost investment, etc.."

Might also use, for point light source, the short LED strips used for car trim. I've seen them complete with their own powerstrip for stepping down from the cig lighter, so I imagine the inverter could be omitted from the circuit. (Keep them things around, though, as they are, $ 4 $, the best electrical investment a prepper ever had).