40w polycrystalline solar panel wholesale for solar plant

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Tunto carries out strict quality monitoring and cost control on each production link of solar system, from raw material purchase, production and processing and finished product delivery to packaging and transportation. This effectively ensures the product has better quality and more favorable price than other products in the industry.Compared with other products in the same category, solar system has the following competitive advantages.

Company Advantages
1. Adopting cutting-edge technologies, Tunto off grid solar panel system is manufactured to meet the Energy Labelling Scheme. It has been recognized by the Mandatory Energy Efficiency Labelling Scheme (MEELS) and Voluntary Energy Efficiency Labelling Scheme (VEELS).
2. polycrystalline solar panel is especially can be used to off grid solar panel system .
3. We are committed to providing the best polycrystalline solar panel with the best considerate service.
4. polycrystalline solar panel products from Guangzhou Tunto Green Power Technology Co., Ltd. pursue high quality and low prices.

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High quality monocrystalline solar panels have a conversion rate up to 21% and service life of 30 years

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High-quality aluminum frame with high strength, corrosion resistance, lightweight, and other characteristics, to ensure that the solar panel has a long life of up to 30 years.

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The surface glass of the component adopts Australian low-iron tempered glass (the iron content is less than 0.02%), which has the function of anti-reflection and waterproof and can effectively improve the light absorption rate and reduce the power loss caused by dust accumulation.

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Anti-aging imported backboard and water seal make sure the water doesn't get inside the solar panel and cause damage to the solar panels

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How to select solar panels？

Firstly，we must choose regular manufacturers with complete qualifications and good reputation. It is better to visit the factories in the field so that the quality can be guaranteed. Secondly，look at the conversion rate of panels and select auxiliary materials, such as glass, EVA and profile of outer frame.Lastly，when you look at the border, see if it's square and if it's flawed.

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Company Features
1. Guangzhou Tunto Green Power Technology Co., Ltd. cooperated with many esteemed companies for polycrystalline solar panel .
2. Guangzhou Tunto Green Power Technology Co., Ltd. is strong in technology and has excellent ability of research development.
3. Tunto is a company who is responsible for customer satisfication. Inquiry! By introducing advanced machines and technologies, Tunto aims to be an excellent off grid solar panel system manufacturer. Inquiry! Guangzhou Tunto Green Power Technology Co., Ltd. is ready to embrace different cultures. Inquiry!

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Tunto polycrystalline solar panel complies with the safety standard. Tests carried out on raw yarn, finished textiles, garments, and accessories ensure the safety of the finished product. It will be decomposed into harmless substances, which causes no pollution

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Tunto off grid solar panel system has to go through diverse tests. These tests are strictly conducted in terms of stress points, support points, yield points, wear resistance, toughness, friction force, etc. The product features easy and convenient storage

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The cutting process is one of the important steps in manufacturing Tunto polycrystalline solar panel. This process is focused on two things: the aesthetics and the reduction of wastage. The product has passed the European standard: EN 13432 and US standard: ASTM D6400

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Tunto polycrystalline solar panel requires precision casting. Its components and parts have to go through casting, cutting, thermal treating, surfacing polishing, and so on. The product is notable for outstanding sealing performance

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The safety level of Tunto off grid solar panel system is guaranteed by a series of tests. It has passed the electric leakage, overload, overvoltage, and capacitive load testings. The product can guarantee food security, because it can restrain the reproduction of bacteria and microorganism

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This product has a best-suited shape. Its dimensions are calculated based on the loads on its elements and strength of the material. It can be used for hot and cold foods

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