I'm in central Florida where temps have been near 80 & sunny since I got these. Under those conditions - i.e. direct sun beating down on them for 7 hours - they emit light for about 5 hours into the night. They are always dead by 2am. Today we had our first cloudy day in a while. Lights came on at twilight, but only had enough charge to stay lit for about 1 hr. If that's what you're looking for, these are easy to set up. They're also not too bright, so you may need more than you think to get the effect you're after.
8 Pack URPOWER Solar Lights Outdoor - Longer Working Time, Bigger Solar Panel & IP65 Waterproof Landscape Lighting Auto ON/OFF For Yard (Warm White)
47 Review
Claoner Outdoor Solar Motion Lights - 8 Pack Security Lights With Motion Sensor, All Night Brightness Control, And Wide Angle Waterproof Wall Lights For Enhanced Visibility
49 Review
LEONLITE 12-Pack 3W LED Landscape Pathway Light, 12V AC/DC Low Voltage CRI90+ IP65 Waterproof Non-Dimmable ETL Listed Bronze Aluminum 3000K Warm White
54 Review
6 Pack Solar Garden Lights Outdoor Decorative 15 Lumen Metal Pathway Waterproof Warm White Landscape Lighting For Lawn Yard Patio Walkway Decor - LeiDrail
44 Review
💡 Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review
Wireless Electronic Ballast Interface Certified
8 Review
🔌 Robertson 2P20132 Quik-Pak: 10 Fluorescent eBallasts for 2 F40T12 Linear Lamps, Preheat Rapid Start, 120Vac, 50-60Hz, Normal Ballast Factor, NPF, Model RSW234T12120 /A (Crosses to RSW240T12120 /B)
4 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review