20W-18V Polycrystalline Solar Panel 20 Watt Solar Panel Small Solar Panel
Description:
Polycrystalline solar panels are made from similar silicon material hence instead of going through the slow and more expensive process of creating a single crystal, molten silicon is just put into a cast and cooled with a seed crystal. By using the casting method, the crystal surrounding the seed isn’t uniform and branches into many, smaller crystals, thus the term “polycrystalline”. The surface has a jumbled look with many variations of blue colour. In general, we have a number of successful projects around the world, such as grid-connected power generation systems, off-grid power generation systems, and integrated power generation facilities. We have advanced, mature and stable supply lines to support your multi-faceted needs in the solar market.
Mechanical drawing:
Product Details:
| Model | U20P-12 |
| Peak Power (W) | 20±3% |
| Open circuit voltage (V) | 21.6 |
| Peak Voltage (V) | 18.0 |
| peak current (A) | 1.11 |
| Short-circuit current (A) | 1.21 |
| Solar cells efficiency | 17.8% |
| Maximum system voltage (V) | 1000V DC |
| Rated operating temperature | 48±2°C |
| Working temperature range | -40°C- +85°C |
| Current temperature coefficient | 0.1%/°C |
| Voltage temperature coefficient | -0.37%/°C |
| Power Temperature Coefficient | -0.45%/°C |
| Solar Cell | 156*22*0.19mm |
| Number of cells | 36 pcs |
| Size | 450*345*18mm |
| Weight | 1.9 kgs |
| Surface Packaging | Low iron tempered glass/3.2mm |
| Sealant | Ethylene Vinyl Acetate (EVA) |
| Border | Anodized Aluminum/Silver |
| Junction Box Waterproof Level | ≥IP65 |
| Pre-wind pressure | 2400Pa |
| Back wind pressure | 2400Pa |
| Maximum hail impact | 25mm/ 23m/s |
Tempered Glass
- Low iron tempered embossed glass.
- 3.2mm thickness, enhance the impact resistance of modules.
- Self-cleaning fnction.
- The bending strength is 3-5 times that of ordinary glass.
Solar cell
- High efficiency solar cell more than 18.6%.
- High-precision screen printing to ensure accurate grid position fro automatic soldering and laser cutting.
- No colar difference, outstanding appearance.
Frame
- Conventional frame.
- Silver or black frames are optional.
- Boost bearing capability and prolong service life.
- Serrated-clip design tensile strength.
- Seal-lip design glue injection.
Junction box
- Conventional standalone edition and engineering custom edition.
- Quality diode ensures module running safety.
- IP67 protection level.
- Heat dissipation.
- Long service life.
Our advantage:
- High efficiency, outstanding workmanship.
- Energy saving, environmental-friendly, Safty, No pollution.
- Advanced technology, strict quality control system.
- Easy installation, safe operation, free maintenance.
- 10-year product warranty, 12-year warranty at 90% power output,25-year warranty at 80% power output.
- Quality in priority, clients the upmost.
- Application class A.
- Usig high transmittance pv glass, strong aluminium frame which can bear heavy snow and wind.
- Module can made according to the requirements of client.
- Easy install, free maintain.
Polycrystalline Solar Panel Application:
Solar power stations, Small solar wind hybrid system, Rural electrification, Small home power systems, Power supply for traffic, security, gas industry, 12V and 24V battery charging systems, Other industrial and commercial applications.
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18V Polycrystalline Solar Panel 20 Watt Mono Versus Poly Solar Panels Images
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