- RFQHere all the questions related to solar products will get the answers , such as solar controller, solar inverter, solar flood lights , solar street lights or solar system, etc.
Q 1: What is different between PWM solar charge controller and MPPT solar controller?
A: Both PWM and MPPT solar controllers are used to control the charge current flowing from the solar panels to the solar battery, keep the current flowing not too large and prevent the battery pack from overcharge.
Comparatively, PWM solar controller is much cheaper price, and the conversion rate usually is around 70-80%, and MPPT solar charge controller is much more price, and conversion rate can reach to 99% now, so more efficient.
Q 2: Can I wire two charge controllers in parallel to one battery bank?
A: No, PWM charge controllers are not designed to communicate with each other.
Q 3: How to choose a solar charge controller size?
A : Solar charge controller is a regulator that controls the charge and discharge current of solar battery. It is essential to prevent overcharging or over-discharging a battery. Then can prolong the battery's life span.
But many people don't know how to choose a solar controller, Here we will figure out how to calculate a controller size.
Q 4: What are solar controllers' time control and light control functions?
A: As we know, solar controllers control the battery's charging and discharging current. Besides, most of the solar controllers are multi-functional, like our SC model and SYC model PWM solar charge controller, not only has charging and discharging mode but also includes timing control mode, light control mode, light and time delay control mode, manual control mode and test mode.
Here we will give a detail introduction to explain how the solar controller works under different modes;
Q5: How to wire a solar system?
A: To set up an off-grid solar system, you need to follow the below steps.
1. Calculate your load
2. Choose solar panels
3. Choose batteries
4. Choose solar controller / solar inverter
5. Serries and Parallel connection
6. Wiring
7. Selecting the Correct Size Power Inverter Battery Cables
8. Mounting the solar panels
Q6: There are five wrong installation methods for solar street lights, don't make them again!
A: Solar street lights are a new type of energy-saving and environmentally-friendly street lights that will not retain garbage and will not affect nature. Therefore, many urban lighting projects currently prefer to choose solar street lights. However, customers often report that the lights of solar street lights suddenly do not turn on, and they suspect that the quality of the street lights is a problem. In fact, except for a small part of quality problems, most of the reasons are because your installation method is incorrect. Let's take a look at the following 5 wrong installation methods:
Q7: Problems and maintenance of solar street lights.
A: Solar energy is inexhaustible, clean, pollution-free, and renewable green energy. The use of solar power has unparalleled cleanliness, high safety, relative extensiveness, long life, and maintenance-free advantages that other conventional energy does not have. Solar energy is considered to be the most important energy in the 21st century.
Thus, nowadays, more and more people choose to use solar street lights in their gardens or highway. When we use solar street light, we might meet some different problems which they occur, here I will explain to you the reasons and tell you how to maintain them.
