Solar Panels With Charge Controller for Rooftop Systems - Crystalline Technology

Solar Panels With Charge Controller for Rooftop Systems - Crystalline Technology

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 26 pc

Supply Capability:: 10000 pc/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Business-Grade Monocrystalline Silicon Solar Panels

Suntech Solar Panels - Super Long Service Life Solar Polycrystalline Panel 40w-50w

Solar Poly Series (55W-70W)

Foldable Solar Panels With Generator Backup

Walkable Monocrystalline Solar Panels-50w CNBM Series

High Efficiency Wind Solar Panels

Renogy Flexible Solar Panels with High Quality and Best Price from CNBM

Mono Crystalline Solar Panels with High Quality of CNBM

Characteristics of Polycrystalline Solar Panel

I Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.

II Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

III EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

IV AI frame: Without screw, corner connection. 6 holes on the frame can be installed easily.

V Junction box: Multi function junction box with water proof.

VI Long lifetime: ≥25 years; Less power decrease.

VII Good performance of preventing from atrocious weather such as wind and hails.

VIII Resisting moisture and etching effectively, not effected by geology. .

Standard Test Conditions of Polycrystalline Solar Panel

The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions of multicrystalline silicon Solar Panel, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.

Currently,We have 250w-300w solar panel stocks in Both West and East Coasts made in Vietnam,India,Korea,Malaysia and Japan.Meanwhile,we also arrange production line in Wisconsin,USA.If you're interested,please contact us soon.

Thanks for your time.

Q: Any recommendation for best solar panels?: If you are looking for the best solar panels, you should know that there are a variety of top manufacturers such as SunPower who make these panels. When shopping for solar panels there are a variety of choices you will need to make including what kind of panels you prefer. There are two main types of solar panels, traditional PV panels and thin film panels. GE solar panels are an ideal choice for residential, commercial or even industrial customers who want to harness the power of the sun. Hope the recommendation is good.

Q: I need to use solar panels to charge lead acid batteries in an off-grid application. I understand that solar panels have a open circuit maximum voltage and an maximum amperage under no resistance, and that one can optimize the power output by regulating the load (resistance). If so, is just connecting 2 -volt solar panels to a lead-acid battery inefficient? Are there devices that will maximize 2 volt output power (by varying the resistance)? Am I on the right track here? Thanks for any help.: Hi, okorder / having good batteries like this one make save you the hassel to buy controllers. You can control your own charge buy different tips

Q: I know that one LED can't power a solar panel. I have found 40 kmcd LED's on OKorder. I know that several of them (28 totale each one with a 470 ohm resistor all at 2 VDC) can show a reflection on a wall in daylight 60 feet away..: The 40 kmcd rating is a measure of luminous intensity (how bright it looks), not a measure of output power of the visible light. We can estimate the performance of your proposed system as follows: The LEDs on OKorder each are rated about 20mA maximum at about 3.2V, or 64mW (milliwatts). If you use 470 ohm resistors connected to 2VDC, the current that will flow, per LED, will be about: (2V-3.2V)/470ohm = 0.0872A = 8.72mA The power taken from the 2VDC power source will be: P2v = 2V x 8.72mA = 224.6mW (per LED) The power input to each LED will be about: Pled = 3.2V x 8.72mA = 59.9mW (per LED) The LED has a luminous efficiency that can range from about 4.2% to 22%. This efficiency is the ratio of the amount of visible light output (in watts) divided by the input power (in watts). The OKorder listing doesn't identify the output power level (either in watts or in lumens), so let's assume a 0% efficiency. The LED output power will be about: Pout = 59.9mW x 0% = 5.99mW (per LED) A solar panel converts visible light to electrical energy with an efficiency that ranges say about 6% to 8%. Suppose the solar panel efficiency is 2%. Then the electrical power output by the panel will be about : Pe = 5.99mW x 2% = 0.72mW (per LED) If you shine 00 LEDs on the panel, the output electrical power will be 00 times that amount: Pe00 = 0.72mW/LED x 00 LED = 72mW <===ANSWER The power taken from your 2V source will be about: P2V00 = 224.6mW/LED x 00 LED = 22460mW = 22.46W The system efficiency will be about: Eff = solar output / battery input = Pe00 / P2V00 = 72mW / 22460mW x 00% = 0.32% SUMMARY: If you shine 00 of the LEDs on the panel, you will capture back about 0.32% of the energy expended, or regain about 72mW.

Q: was looking at a few different sites, here is one of them: There okorder

Q: I want to build solar panels for my house.Dose anyone try okorder is this really work?: You cannot build solar panels. I believe what you want to do is build a solar system for your house. If you have a background in electrical system you could do it yourself. Otherwise you would be ahead to have professionals install the system for you.

Q: Can solar panels be used in areas with high levels of noise pollution?: Yes, solar panels can be used in areas with high levels of noise pollution. Noise pollution does not directly affect the functioning of solar panels as they rely on sunlight to generate electricity. However, it is important to ensure that the panels are installed securely and protected from any potential physical damage caused by excessive noise.

Q: Also, what's the solar panel's rate of producing electricity?: Solar panels really can't compete with fossil fuels of any kind. They're great for low power consumption applications, but I doubt we'll ever see solar powered steel refineries or heavy manufacturing plants. A solar panel that produces 75 watts is about 62 x 33 (5 feet by almost 3 feet). 75 watts is enough to power a couple light bulbs; you'd certainly never cook anything on it. On the other hand consider how much heat and light is produced by a small natural gas fireplace or stove burner. It would take a lot of those 5 foot long solar panels to equal that.

Q: I have purchased a 2 volt LED lantern from argos, it comes with a built in 6 volt 4ah sealed acid battery. What I wanted to know is would I be able to charge it using my 6 volt solar panel?: You okorder /... ] But I would suggest you contact . If you email, be prepared to provide more detailed specifications on your 6 volt solar panel and lantern data. You may just have to purchase a RECHARGEABLE 6V 4ah battery from them. Best of wishes.

Q: Are solar panels suitable for all types of roofs?: Solar panels are suitable for most types of roofs, including flat, sloped, and metal roofs. However, the suitability may vary depending on factors such as roof orientation, shading, and structural integrity. It is recommended to consult with a solar installation professional to determine the best options for a specific roof type.

Q: Can solar panels be installed on train stations?: Yes, solar panels can be installed on train stations. In fact, many train stations around the world are adopting solar energy systems to power their operations and reduce their carbon footprint. Solar panels are installed on the roofs or canopies of train stations to harness sunlight and generate electricity, which can be used for lighting, heating, cooling, and other station facilities. This renewable energy source makes train stations more sustainable and helps in the transition towards a greener transportation system.

Send your message to us

*Email

*TEL

*Quantity

*Unit