Three hours of sun is all these need—I mounted them under my eaves where direct light is spotty and they've still stayed fully charged for two straight weeks. The night vision is genuinely impressive too, the infrared picks up clear detail across my whole driveway instead of just a blurry blob.
Michael★★★★★
I was skeptical about the solar claim, but after a week of cloudy weather, the batteries still show full charge. Night footage is surprisingly sharp too, the infrared really picks up detail in my driveway.
Edward I.★★★★★
Three hours of sun a day really does the trick — I haven't touched a ladder to charge these since I mounted them. The f/1.6 lens pulls in enough light that my driveway looks almost clear as day at midnight, which honestly surprised me for the price.