How to make sure the solar light is what you want

•For example: ESL-16

     solar panel: 14.5W, Li-ion battery: 97.68WH, LED: 1200lm, lighting mode: 5Hrs smart lighting + 7Hrs 25% lighting

     Below is the formula for reference:

•LED lighting time:

    T(time)=battery power/(LED power*energy saving )coefficient=15.35Hrs

     Lighting time per day：4.75Hrs

     Lighting days=15.35/4.75=3.2days

     It means the lighting will work for 3 raining day after battery full charged.

•Solar charging time:

     T(time)=battery capacity/solar charging current=(97.68/3.7)/ (14.5/5.5)=10Hrs, which means it need 2 sunny day for full charing the battery.

•Left power after daily solar charging & using:

     Left power=(daily solar charging-daily using)/daily using=61.6%

     It means solar charge one day, the lighting will work 1.6days.

Shenzhen Leadray Optoelectronic Co.,Ltd is professional China Led Solar Street Lights Manufacturer,have many years experience in LED solar street lights Design,R&D and manufacturing all in one led solar street lights.