Q: What is the difference between NCM ternary battery and LFP battery, which is better?

Generally speaking, NCM ternary batteries usually have higher energy density compared with LFP batteries, in other words, they will be smaller or lighter with the same capacity. They also exhibit better output behavior at low temperature than LFP ones. While the LFP batteries usually have longer lifetime and better thermal safety.

The choice of battery type depends on the product demand. If product need to be thin or light and will work under -10℃,NCM ternary battery will be a good choice. If the lifetime of product is critical, we usually will use LFP battery.

Q: Is there any overheat protection when charging for batteries in solar lighting? Why the temperature will increase during charging process, and can we control the temperature?

We have protection system during charging. The power will cut off once the temperature of battery exceeding the critical value which was set in advance.

The temperature increase of battery during charging was caused by the internal resistance of battery, the larger the resistance is, the higher of heat output.  While the total temperature increase of the product during charging also relevant with the structure design of the product. Using batteries with lower internal resistance and good cooling structure design will result in relatively lower temperature increase.

Q: What’s the difference between infrared sensor and microwave sensor? How to choose it?

Infrared sensors detect infrared rays emitted by human bodies or other objects and transfer to electrical signal. As the sensors on the solar lighting were mainly used to detect human bodies, the range of wavelength was set according to the specific radiation range of human body. The advantage of the infrared detector is that it does not emit any type of radiation and the device power consumption is very small. Moreover, the invisibility of the detector is good, and it reacts with the presence of the object, regardless whether the object moves.

While microwave detector will emit microwaves in a certain range, and judge the movement of objects by the change of reflected waves. It has advantages including high sensitivity, strong penetration and so on, which is suitable for the detection of the object near or far from the microwave sensor at a certain speed.

Usually, we will use microwave detector on street light, flood light and garden light with high mast due to its high sensitivity and good penetration. While for wall light, lawn light and garden light applied at home, we will choose infrared detector due to its low power consumption and relatively low cost.

Q: What is on-grid residential energy storage system (ESS) and what is off-grid residential energy storage system?

An energy storage system usually consistent with PV panel, hybrid inverter and battery. Whether the system is on-grid or off-grid depend on the type of inverter. With an on-grid ESS, the electrical power produced by solar can flow toward grid, through which people can sell the extra energy to the grid and gain extra benefits. While in a off-grid ESS system, the energy produced by solar can only be used within the system and is not allowed to flow towards grid. Hybrid inverter with on-grid function usually need more protection parts to meet with the safety requirement of grid and get the relevant certifications.

Q: How to choose the power and capacity of the energy storage system?

There are some aspects which will affect the configuration of energy storage system, such as the area of roof, the energy consumption of family, the appliance at home and so on. Usually, we recommend the family with 3~5 members to install a system with 5~8KW inverter and 10~15 KWh battery, While for bigger family with 5~8 menbers we recommend 10~12KW inverter with 15~20KWh battery. Please feel free to contact us and we will provide a proper configuration for you.

Q: WHAT TO DO when the Smart-App can't find the micro inverter to be added?

A1:Check the following points:

* Check if the WiFi status indicator of the micro inverter is in the "Blue Flashing" state;

* Check if the Bluetooth function of your smart device is turned on;

* Check if the signal of the wireless network is good.


If all this is the case and the inverter is still not found, press the red reset button for more than 5 seconds to reset. After the WiFi indicator light flashes blue again, use "Smart Life" App to reconfigure the network.

Q: WHAT TO DO if I have multiple micro inverters to configure?

Install all micro inverters properly and make them work normally to generate power, and then operate according to the configuration and use steps. The App can search all inverters to be added at one time and configure them at one time.

Q: The inverter cannot be connected to the app at night?

At night, because the solar panel does not generate power, the micro inverter does not have any power input, so it will offline and it is impossible to re-configure the network at night.

Q: How long will it take to get an EV full charged by using your product?

The charging time depend on the battery capacity of EV and the output power of the charger. We provide portable EV charger and wall-mounted EV charger with output power between 3.6KW and 22KW. If we use a 7.2KW EV charger to charge a car with 50KWh battery, it will take about 7 hours. The larger the output power is, the shorter of the charging time.

Q: What’s the difference of the EV chargers between Type1 and Type2 ?

Type1 and Type2 correspond to SAE J1772 connector and IEC 62196 connector,respectively. The former one usually applied in the America, Japan, Korea while the latter one was common in Europe. The input voltage of the EV chargers also differ from the local electrical policy, 230V/400V for Europe region and 110V/240V for America region.


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