How Much Battery And Panel Should Solar Street Lights Be Equipped With?

Solar street lights should be equipped with 92AH batteries, 18V 70W panels.

Calculation process: 1, lamp daily power consumption: 20W*10H=200WH Battery capacity: 200WH/12V* (3+1) days =67AH Consider efficiency and discharge depth, efficiency according to 90%, battery discharge depth according to 80%, then the capacity of the battery should be: 66/0.9/0.8=92AH2, solar panel calculation area daily light time is calculated according to 6 hours.

Battery discharge per night =200WH/12V=16.7AH panel charging current =1.5*16.7AH/6.5H=3.85A (1.5 is the coefficient, about more rainy days, the larger the coefficient, the smaller the vice versa, generally between 1.3-2) panel power =18V*3.85A=70W. Therefore, [18V 70W] solar panels can be used.

Solar street lights outdoor waterproof advantages

1. Easy installation: When installing solar street lights, there is no need to set up complex lines, only a cement base, a battery pit, and a galvanized bolt can be fixed. Do not need to consume a lot of manpower, material resources, financial consumption, simple installation, do not need to wire or "gutting" excavation construction, there is no power outage and power restriction concerns.

2. Less investment: solar street lights are a one-time investment, long-term benefits, because the line is simple, does not produce maintenance costs, does not produce expensive electricity. 6-7 years to recover the cost, 3-4 years to save more than 1 million electricity and maintenance costs.

3. Good safety performance: solar street light due to the use of 12-24V low voltage, stable voltage, reliable operation, no safety risks, is an ideal product for ecological communities, road departments. No electric shock, fire and other accidents.

4. Energy saving and environmental protection: to provide electricity by solar photovoltaic conversion, inexhaustible. No pollution, no noise, no radiation. Solar street lights can add new selling points to the development and promotion of noble ecological communities; Sustainably reduce property management costs and reduce owners' shared share of costs.