Factory Price Rooftop Solar System Polycrystalline Monocrystalline Silicon Solar Panels

• Customization: Available
• After-sales Service: 1 Year
• Warranty: <5 Years
• Model NO.: 2025062501
• Application: Industrial
• Condition: New
• Material: Polycrystalline Silicon
• Voltage: 6V
• Specification: 217*133*15mm
• Trademark: None
• Origin: China
• Package Size: 25.00cm * 15.00cm * 3.00cm
• Package Gross Weight: 1.500kg

Product Description

 Rooftop Solar System Polycrystalline Monocrystalline Silicon Solar Panels
 

Product Description

Solar panels are usually made from silicon, or another semiconductor material installed in a metal panel frame with a glass casing. When this material is exposed to photons of sunlight (very small packets of energy) it releases electrons and produces an electric charge.

Product Parameters

 

solar panel dimension	217*133*15mm
Waterproof grade	Yes,IP67
Power	3W
Voltage	6V

 

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FAQ

 

What is the difference between ETFE and PET solar panels?

ETFE: Offers higher strength and tear resistance, making it more suitable for complex curved surfaces or applications requiring greater mechanical strength. PET: Relatively softer, suitable for flat or simple curved surfaces, but with lower tensile strength and tear resistance.

How solar panels work?

When sunlight hits a solar panel, the light energy is converted into electricity.  
This process is known as the photovoltaic (PV) effect, which is why solar panels are also called photovoltaic panels, PV panels or PV modules.
Solar panels respond to both direct sunlight coming straight from the sun and diffuse sunlight reflected from particles in clouds and the atmosphere. Solar panels are usually able to generate some electricity even on a cloudy day. However, most electricity is produced on clear days when direct sunlight hits the panels.

Size of solar panels
The rated capacity of a solar panel (in watts) depends on its physical dimensions and its efficiency. Efficiency refers to the percentage of light energy the panel converts to electricity.

Typically, panels used for household systems are around 1 metre wide by 1.7 metres long, but bigger panels are available. Larger commercial systems typically use panels around 1 metre wide by 2 metres long, but they can be bigger.

For panels of the same size, greater efficiency means a higher rated capacity. This is because, although the same amount of sunlight falls on panels of equal size, a more efficient panel converts a larger percentage of the light to electricity. The maximum efficiency of new solar panels is gradually increasing as the technology improves. More efficient panels can help get the most generation from a limited roof area.