LED there be light
Many folks here are doing or wanting to do something with LED lights outdoors. Here are some considerations.
1. Solar LEDs do not work very well. They are too dim and they don't last (the rechargeable batteries inside die soon). They don't work on rainny days.
2. Do not use plug-in christmas LED lights. They say they are for outdoor use. They are not. They run on 110V AC with no safety grounding. There is always electric shock danger if you don't plug into a GFP outlet.
3. I have hooked up 50 bright white LEDs with an old car battery, and I have been running the LEDs 24/7 for over a week now, still going. I will let you know how long the battery will last without a re-charge. I think if you run you lights 4 hour a day, the battery will last months.