KDF SPK_300_LED 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
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
- 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
- Second distributed photovoltaic power generation refers to the user in the vicinity of the site or the construction of the operation, to the user side of the spontaneous use of their own, the excess electricity and the balance of the distribution network system for the characteristics of the photovoltaic power generation facilities.
- Q:Solar photovoltaic system
- To search and collect profit (in all spontaneous terms): the average recovery of funds on average generating capacity = * (distributed generation electricity subsidies + residential electricity price =200* (0.42+0.55) =194 were the first year of the recovery of funds = daily recovery funds *365=194*365=70810 yuan investment recovery period = total investment / average recovery of funds is about =450000/70810=7.06 years. 6.5 years 25 years average annual net income = recovery funds * (20 -6.5) + daily average generation price *365 * electricity days *5 years =70810*13.5+200*0.55*365*5=1156680 yuan
- Q:How to calculate the income of photovoltaic system
- Hypothesis: 1 my peak electricity price of 1 yuan / degree, the flat price of $0.7 / degree, the local coal desulfurization unit benchmark price of 0.4 yuan / degree. 2 my home at noon to 1 points solar power generation of 90 degrees, power consumption of 40 degrees; in the afternoon from 5 to 6 solar power generation of 10 degrees, power consumption of 60 degrees. Results: 1 according to the total solar energy power generation and the total energy consumption calculation two times my solar power electricity is 100 degrees, 100 degrees, more than electricity difference is zero; so I save electricity 85 yuan, receive subsidies 35 yuan, the total revenue of 100kWh * [(1 + 0.7) /2 + /kWh = 0.35 yuan) 120 yuan.
- 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
- Solar panels are the most basic components of photovoltaic power generation systems and products. Its main role is to convert solar energy into electricity stored in batteries.
- Q:Solar power generation system how to choose?
- The whole system is not equal to the power generation capacity of solar panels, but the system capacity. There are often many manufacturers to promote solar power generation efficiency how high how high, but if the choice of the circuit design and the inverter, loss of power is also completely different. For example, the centralized inverter for series system design, the efficiency of the system is about 88%, each brand inverter is also different. The advantage is that the inverter series system competition brand, low price; drawback is the solar panel is connected in series, the solar panels generating capacity of the whole system by the minimum power capacity decision, so once the board has not completely clean the ash layer is not uniform, or falling leaves or cloudy, the efficiency of the whole system will decrease.
- Q:Solar power generation system installation which precautions, ah, there is a need for special attention
- Pay attention to the basic power calculation is not enough! The reality is not up to
- Q:Solar power generation system suitable for home, how much is the cost of a set?
- The use of solar power system has many parts, have the power of this parameter, he said 500W1000W is a parameter which kind of accessories, and electricity related degree is large, panels, solar power systems, accessories, solar panels for electricity generating capacity of the inverter board and the two parts of the largest correlation under normal circumstances, the board 1000W day power of 4
- 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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