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wind solar hybrid controller
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  • wind solar hybrid charge controller
    The Latest Privilege Version MPPT Wind Solar Hybrid Charge Controller With Wifi/ GPRS Monitor

    > Remote Monitoring by 3 ways: PC monitoring; WIFI by mobile phone; GPRS by mobile phone. >This new wind solar hybrid controller is special design for 0-800w wind and 0-600w solar panels for wind >solar street light or home wind solar complementary system. >Appearance is elegant, operations are easy. Uses a custom digital LCD screen can see solar panel ,wind turbine, battery status and four key operation mode. The user to use simple and easy to use, popular and  >The inner circuit board of the controller is sprayed to prevent dust, moisture and static electricity, which can effectively prolong the controller' service life. >This controller can workable to Gel, Lead-acid, Ternary lithium battery and Lithium iron phosphate battery. >Lightning counter-attack, solar charger, over-voltage automatic braking, storage battery reverse connect and open protection, etc.

  • MPPT solar charge controller
    Mini MPPT Solar Charge Controller 10amp 20amp 30amp for solar power system

    Latest JN-MPPT-Mini MPPT solar charge controller ranges from 10amp 20amp 30amp with mini smart design for various use purpose . The battery system voltage is 12v 24v 48v auto recognize and max. PV input can be 150V. High charge efficiency is above 99.8% which is much cost-effective for project.

  • MPPT solar charge controller
    Latest MPPT Solar Charge Controller 30amp 40amp 50amp for solar power system

    Latest JN-MPPT-AL MPPT solar charge controller ranges from 30amp 40amp 50amp which are used for solar panel system . The battery system voltage is 12v 24v 48v auto recognize and max. PV input can be 150V. High charge efficiency is above 99.8% which is much cost-effective for project.

  • PWM Solar Charge Controller
    Lastest Design PWM Solar Charge Controller 100A 24V 48V 96V 110V 192V 220V 240V

    Latest JND-X series PWM solar charge controller is used in solar off-grid system (independent system), especially suitable for small off-grid solar power generation control system, which automatically adjusts charging and discharging. The battery charging process of the JND-X controller is optimized to extend battery life and improve system performance.

How to choose solar panel specifications for solar street project

2017-12-16

In a solar street lamp system, the solar panel specifications determines the quality of the street light directly. Some of the common street lamp failure, such as lack of lighting time, charging abnormalities, and even solar street lamp system damage are related with the specifications of solar panels. Here's how to choose the solar panel specifications for analysis:

1. Solar panels must choose the correct open circuit voltage and operating voltage

If you choose the PWM solar charge controller, to 12 V storage charge, the open circuit voltage is generally about 20V, the operating voltage is generally 17.5V. If the 24V battery charge, open circuit voltage and operating voltage of 12V twice.

If the MPPT solar controller is selected, the open circuit voltage of the solar panel can not exceed the maximum input voltage of the controller.

2. Solar panel power selection

Solar panel power selection, according to the following company calculations:

P = Q * h / U * ξ1 / ξ2 / ξ3 * Vp

Description:

Q-- load power

H - load day use time

U - system voltage

ξ1 - the number of integrated solar system, take 1.05

ξ2 - control circuit efficiency, take 0.85

ξ3 - battery charge and discharge efficiency, take 0.85

Vp - solar panel voltage.

3. Solar panel types, Single crystal and Polycrystalline

Single crystal solar panels more efficient, light fades smaller, but the price a little more expensive

Polycrystalline solar panels relatively low efficiency, but the price is cheap

4. Solar panel dimensions

Dimensions has a lot of size, which size is more appropriate, this is determined by their own street lighting installation environment, in general, the same power, choose a smaller size is more appropriate.

5 other manufacturing processes

Including the thickness of the aluminum frame, the transparency of glass, sealant is uniform, packaging and transportation


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