320W Monocrystalline Solar Panel can provide about 1600 Watt-hours of electricity per day (5-6 hours of direct sunlight), ensuring a consistent output over 80% for 25 years. | Renogy | | 4pcs 320W Solar Panel 24V Monocrystalline On/Off Grid 1280W for RV Farm Home Rooftop Residential Commercial House | Black | Best Buy