Roll Up Favorites Compare 20W Round Monocrystalline Silicon Solar Panel

Roll Up Favorites Compare 20W Round Monocrystalline Silicon Solar Panel

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Supply Capability:: 10000000000000 watt/month

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Quick Details

Place of Origin:	Guangdong China (Mainland)	Brand Name:	CAP	Model Number:	50w100w150w200w250w300w
Material:	Monocrystalline Silicon	Size:	1385103575mm	Number of Cells:	72pcs
Max. Power:	300w	type:	solar panel	color:	blue&black
warranty:	5 years

Packaging & Delivery

Packaging Detail:	standard export package for solar panel
Delivery Detail:	7-15 days for solar panel

Specifications

solar panel
High Efficiency
25 years Warranty
High-transmissivity low-iron tempered glass

Solar Panel

50w100w150w200w250w300w

Characteristics

1,High and stable conversion efficienly based on over 4 years professional experience

2 ,High reliability with guaranteed +/-10% output power tolerance

3,Proven materials,tempered front glass,and a sturdy anodized aluminum frame allow modules to operate reliably in multiple mountily configurations

4,Combination of high efficicncy and attractive appearance

Quality and Safety

1,25 year 80%,10 year 90% power warranty 3 year power warranty

2,ISO9001:2000 (Quality Management system) certified factory

3,Product Quality warranty & products Liability Insurance to guarantee and user' benefits

4,Certifications TUV Intercert, CE Temperature Coefficients

Module Type	100w	150w	200w	250w	300w
Maximum Power at ST(Pmax)W	100wp	150wp	200wp	250wp	300wp
Maximum Power Voltage(Vmp)V	36/18	36/18	36/18	30.8v	36/18
Maximum Power Current(Imp)A	2.77/5.55	4.16/8.33	5.55/11.1	8.11A	8.33/16.66
Open Circuit Voltage(Voc)V	39.5/19.05	39.3/19.4	39.6/19.5	36.2V	39.6/19.8
Short Circuit Current(Isc)A	3.04/6.09	4.58/9.16	6.1/12.2	8.7A	9.16/18.33
Cell Efficiency(%)	18.60%	18.10%	18.60%	17.80%	18.10%
Module Efficiency(%)	17.70%	17.20%	17.70%	17.10%	17.20%
Operating Temperature°C	-40°C to +85°C	-40°C to +85°C	-40°C to +85°C	-40°C to +85°C	-40°C to +85°C
Maximum system voltage	1000V(IEC)DC	1000V(IEC)DC	1000V(IEC)DC	1000V(IEC)DC	1000V(IEC)DC
Power tolerance	-0.03	-0.03	-0.03	-0.03	-0.03
Temperature coefficients of Pmax	-0.45%/°C	-0.45%/°C	-0.45%/°C	-0.45%/°C	-0.45%/°C
Temperature coefficients of Voc	-0.27%/°C	-0.27%/°C	-0.27%/°C	-0.27%/°C	-0.27%/°C
Temperature coefficients of Isc	0.05%/°C	0.05%/°C	0.05%/°C	0.05%/°C	0.05%/°C
Weight(kg)	8	11	14	20	25.5
Number of cell(pcs)	4*9	4*9	6*10	6*12	6*12
Dimensions(mm)	119453435/30	158080850/35	147167040/35	164099250	2000105050

Q:im making an energy efficiant house for science class and i need to price the house. im putting solar pannels on the roof and would u please tell me how much they are per like 2 sq. feet of a pannel?: Completely self-efficient and autonomous??? Forget it. Too expensive. It's only worth if you use like 8 lights (2-20w) about 4 hours a day, a fridge, a tv about 4 hours/day and basically nothing else or a few low consume stuff. Forget about microwaves, dryers, or other stuff. Too much watts. And that would cost you no less than 5000-6000$. You need panels (about 4 or 6 20w would suit maybe), 2 batteries (about 600Ah at least), inverter(500w/24v) and a regulator, lets say a 30A one. Just stick to normal energy supply. A single 20w panel may cost about 750$ at least.

Q:Are the solar panels on the roof just a gimik to get all the tree huggers to buy it, or are they actually a good, efficent design?: treehuggers already want priuses. the solar panel is meant to run an electric ac system that cool's the prius if the car gets too hot inside. its nice, but personaly, i'd rather have it charge the battery.

Q:Aren't batteries bad for the environment?Toxic?Expensive? With small solar panels phones, iPod's, laptops other small electronics could be smaller, slimmer, more efficient cost people less to charge every day. Maybe a small battery inside as a backup and to store the Solar energy for night time. But overall, batteries should be optional. So big question:Why aren't electronics being produced with solar panels?: Actually, I have gone through quite a few solar powered radios-though they had rechargeable batteries. Still have a solar powered flashlight. Leave 'em out in the sun for a few hours and your get an hour of radio, or a day or so of light. That doesn't get rid of the batteries thought (Which are built-in rechargables)

Q:How often do solar panels need to be replaced or repaired roughly? Is it costly to do so?: Solar Panel Maintenance

Q:Can solar panels be installed on a government building or facility?: Yes, solar panels can be installed on a government building or facility. In fact, many government entities have already started incorporating solar energy as a sustainable and cost-effective solution to meet their energy needs. Solar panels not only help reduce carbon emissions but also provide long-term savings on electricity bills.

Q:Can solar panels be used in disaster relief efforts?: Yes, solar panels can be used in disaster relief efforts. They provide a sustainable and reliable source of electricity, which is crucial during emergencies when power grids may be down. Solar panels can be deployed quickly and easily, enabling the provision of essential services such as lighting, communication, and medical equipment in affected areas. Moreover, solar energy is renewable and environmentally friendly, reducing dependency on fossil fuels and minimizing the impact on already vulnerable communities.

Q:Is it possible for a 2V rated panel to charge a bank of batteries equal to around 36V? I believe that the panels should equal or exceed the voltage of the batteries but, I'm not for certain.: You're right. The solar panels must produce a voltage equal to or slightly greater than that of the batteries. So you need to either switch to a 2 volt battery or add two more solar panels of the same current rating.

Q:Can solar panels be installed on a landfill or waste management site?: Yes, solar panels can be installed on a landfill or waste management site. In fact, these sites are often seen as suitable locations for solar installations due to their large available space, minimal shading, and proximity to existing electrical infrastructure. Additionally, transforming these sites into solar farms helps repurpose and reclaim otherwise unused land while promoting sustainable energy generation.

Q:I am doing a science fair project on solar panels, and I need four solar panels to conduct the experiment. I would only need the solar panels for a week. What type of solar panel should I get?: Your USB power booster may be fragile and is likely expensive, so possibly you should get your 5 volts some other way. 3.7 volts plus a .2 volts D cell is 4.9 volts which is likely close enough for charging most anything with a USB charging cable. If bright sunlight is falling on your solar panel the battery voltage will go to about 5. volts charging at 700 MA, which is also likely acceptable, and will generally be less as part of the 700 ma is being used to charge something else. Also 300 ma may be more typical output of your solar panel even when the sun looks like it is bright. Over charging is unlikely unless the lithium cell has a lower amp-hour = AH rating than the Ni-cad (or nickel metal hydride NiMH 4 AH) D cell, but perhaps you should disconnect the solar panel, if it has been more than one bright sunny day since you charged something with a USB cable. If your battery reads over 5 volts with the solar panel unlighted or disconnected, you are likely to over charge either the lithium cell or the D cell. The PCB protected may complicate adding the D cell (probably not) so you may want to follow your original plan. Your solar panel may send as much as 9 volts to your PCB protection board, when the lithium cell does not need charging: Can the protection board tolerate 9 volts? Probably. If in doubt you can put either a .5 volt or .2 volt rechargeable D cell in series with the solar panel which reduces the input to your PCB protection by about .5 volts. That D cell will over charge, unless you replace it weekly, perhaps oftener. I think your PCB protection prevents over charging and cuts off the load if the lithium cell is discharged to an unsafe level or the load is demanding excessive current. Only the last is a possible problem = one of your USB cords may demand an amount of current that the PCB protection considers excessive. Your USB booster needs about twice as much current as the usb cord is supplying. You don't get the extra voltage by magic. Neil

Q:Can solar panels be installed on hospitals or healthcare facilities?: Yes, solar panels can be installed on hospitals or healthcare facilities. In fact, many healthcare facilities are increasingly adopting solar energy as a sustainable and cost-effective solution. Solar panels can help hospitals reduce their dependence on traditional energy sources, lower operating costs, and contribute to a greener environment.

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