KDF SPK_500 This product is high performance，family used portable solar power system，which can receive energy and store it in battery outside connected to SPK by solar energy on sunny day，and supplies electric power for varies appliances such as electric fan，lighting lamps, television, portable computer etc．It can supply power for both DC and AC electric application .It’s very helpful and useful for home electric supply.
◆ Battery puts outside connected to the SPK for user to choose battery in recommended range, and easily to exchange battery.
◆ Both DC and AC output
◆ Solar Feedback Circuit Protection
◆ Output Short-circuit Protection
◆ Solar「+」「-」anti-access protection
◆ Output「+」「-」anti-access protection
◆ Over Charged Protection
◆ Over Discharged Protection
◆ Over Load Protection
◆ Over-Temperature Protection
Item No. KDF
80% Deep Cycle Number：500
70% Cycle Number：800
Short Period(one Month)：-20～50℃ Long Period（Six Months）：-10～45℃
Low Voltage Disconnect(LVD)
Low Voltage Reconnect(LVR)
High Voltage Discharge( HVC)
High Voltage Recharge(HVR)
DC output & Application
DC output & Application
modified sine wave
Rated Output Power
Low Voltage Alarm
Low Voltage Shut off
High Voltage Shut off
To show the Volume of the Battery
Date of %
To show the percent of the Battery
To show the charging condition
To show the value of charge current
Date of Voltage
To Show the Value of DC output voltage
Date of Voltage
To Show the Value of AC output voltage
- Q:What are the main features of solar photovoltaic systems
- Compared with the commonly used thermal power generation system, the advantages of photovoltaic power generation:No danger of depletion; safe and reliable, no noise, no pollution, absolutely clean (pollution-free); not subject to geographical distribution of the resources, can take advantage of the building roof; for example, areas without electricity, and complex terrain area; no fuel consumption and the erection of transmission line can be on-site power supply high quality energy;; users emotionally receptive; the construction period is short, get energy to spend a short time.
- Q:Solar PV systems
- Fifth distributed photovoltaic power generation implementation of self occupied, power over the Internet, the nearest consumptive, power regulation, operation mode. The power grid enterprise uses advanced technology to optimize the operation and management of power grid, and provides the system support for the distributed photovoltaic power generation operation. To encourage investment business entities with the same power supply area of the power users in power grid enterprise cooperation in a variety of ways to achieve the nearest consumptive distributed photovoltaic power generation.
- Q:What are the devices needed for PV systems?
- Solar cell array. The solar cell array is composed of a solar cell composite plate and a square bracket. Because the single voltage of solar cells is generally low, so usually they are connected in parallel and series solar panels have practical value, as an application unit, and then according to the power requirements of a plurality of application unit series and parallel composition of solar cell array. Solar panels (some semiconductor materials, mainly polysilicon and silicon and amorphous silicon, through a certain process to assemble) is the main component of the solar photovoltaic system, the highest value is also part of the solar photovoltaic power generation system. Solar panels in the light of the circumstances, the battery absorbs light energy, the two ends of the battery appears to be the accumulation of different charges, that is, the light generated voltage, which is the "photoelectric effect". Under the action of the photoelectric effect, the electromotive force is generated at both ends of the solar cell, and the light energy is converted into electric energy.
- Q:How to calculate the income of photovoltaic system
- There are two kinds of algorithms, one for the total solar energy and the total electricity consumption, a solar photovoltaic power generation in real-time and real-time electricity.
- Q:I want to install a full set of domestic solar heating equipment does not know how much money to spend, please.
- Save 50% equivalent to an annual savings of more than 3300 heating projects; water consumption in accordance with an average of 200 liters a day, remove the winter has been deducted 120 days, the remaining 240 days probably with hot water total: 48 tons, natural gas energy is calculated according to the cost of the cheapest words per ton of hot water heating costs 15 yuan, annual water savings of 720 yuan. Two of the total savings of 4000 yuan, according to the energy prices coefficient is estimated at less than 10 years to recover the full investment, another ten years of savings more than 40 thousand yuan.
- Q:What is the system voltage of solar panels
- System voltage refers to the number of solar panels composed of a solar power generation system, the maximum DC voltage of the power system.
- Q:Solar power generation system how to choose?
- Inverter in the northwest power plant used more, but the Northwest Power Plant aunt groups of regular cleaning, and northwest power station construction in the warm sun where no human habitation, not what influence the efficiency of the system. Micro inverter system is more suitable for villas or single family houses, but the price is more expensive than the centralized inverter, such as Yu APS system efficiency of 95.5%. The United States is the best enphase, but the price is higher than 50%, the individual feels more than the amount of power generation, to buy domestic energy can be enough.
- Q:Solar power generation system installation which precautions, ah, there is a need for special attention
- 7, the battery terminal to be strong (10 million can not be short circuit) to pay attention to the polarity of installation, to avoid the explosion and fire. 8, the controller has the corresponding distribution protection measures. But the wiring process should also pay attention to prevent polarity reverse, short circuit, etc.. Avoid unnecessary trouble. Pay attention to the angle of placing and avoid the rain. 9, with inverter system, inverter connected to be connected to the battery positive and negative poles. 10, the construction site must be open, in the installation of solar cells can not be tall buildings or other things blocking the sun. 11, the controller needs to choose low loss, good stability, long life controller. When the installation is clear that the controller is a common negative or common cathode design, so that the entire system connection, installation help.
- Q:Solar power generation system suitable for home, how much is the cost of a set?
- Then the 1000 Watt Solar panel price is 5000 yuan -10000 yuan, regardless of inverter and power generation, but with the power of the household appliances related to property, if you use ordinary household appliances 100 watt power inverter, then with a 300-500 tile, if you are using a blender or high power desktop computer although only 100 watts -200 watt but starting current, so the best 1000 Watt inverter. The price of the inverter is 800-2000 yuan (depending on the power and performance price).
- Q:What are the components of the solar photovoltaic system?
- EVA: a high quality EVA film with a thickness of 0.78mm, which is made of UV resistant agent, antioxidant and curing agent, is used as a sealing agent for solar cells and a bonding agent between glass and TPT. High light transmittance and aging resistance.
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