Solar street lamp calculation formula：
Calculation method of lithium battery solar street light:
Solar street light lithium battery capacity: light source power * lighting hours per night * number of rainy days ÷ 12 (for example: light source 30 watts, lighting time per night 4 hours, rainy days 7 days, then the required lithium battery capacity is 30*4* 7÷12=70AH lithium battery for solar street light)
Calculation method of colloidal battery solar street light:
Solar street light gel battery capacity: light source power * lighting time hour per night * rainy days ÷ 12 ÷ 0.7 (for example: light source 30 watts, lighting time per night 4 hours, rainy days 7 days, then the gel battery capacity is 30* 4*7÷12÷0.7=100AH solar street light gel battery)
Solar panel calculation method (the calculation method of lithium battery is the same as that of gel battery):
Solar street lightsolar panel power: light source power * lighting time hour per night ÷ 12V ÷ local effective light time (normally calculated as 4 hours) * 18V * 1.17 (for example: light 30W, lighting time per night 4 hours, then need Solar panel power: 30*4÷12÷4*18*1.17=52.65 watt solar panel)
