5 m solar street light prices

How to choose the solar panel? Battery choose to have three levels of A B C, natural type A film better. However, the advantages and disadvantages of solar photovoltaic module can't completely sure. Components of the processing technology and material choice to a certain extent determines the solar panel group



how to choose the solar panel? Battery choose to have three levels of A B C, natural type A film better. However, the advantages and disadvantages of solar photovoltaic module can't completely sure. Components of the processing technology and material choice to a certain extent determines the overall performance of the solar panel component and longevity. Choose carefully, see if there was any gold sun, TUV, CE certification, and guarantee the quality of certification. Small solar energy street light often, you can also look through surface strengths and weaknesses:

1. Observe the surface of the toughened glass. In order to improve the production speed, small manufacturers usually don't care about accidentally drop in toughened glass on the surface of silica gel. If not, remove the panel of the power generation efficiency will decrease.

2。 Look at the battery

many manufacturers use irregular broken cell to form what seems to be a complete cell for welding. This method the risk is very big, may not be obvious at first, but after mosaics of cell is easy to disconnect again, affects the whole block. Using a panel.

3。 See

behind the quality of the back pressure, pressure after no uniformity, such as bubbles, wrinkles, and so on.

4。 See a border

because solar panels industry low barriers to entry, many small manufacturers use manual frame cutting method. Due to the nonuniformity of each frame, frame not closely contact, and not rigid rectangular shape. Degree is greatly reduced.

5。 See the silica gel

look at the back of the silica gel is evenly distributed, and whether it closely through the gap between the rear panel and framework.

6。 The welding

to see the panels if there is a leak welding wire welding. At the same time, it is necessary to observe whether cell arrangement rules.

7。 Look at the junction box

in the end, to see if junction box and firm, junction box cover is rigid, firmly connected to the terminal block; See if line lock can rotate freely and tighten.

all in all, more and more quality control points of solar panels, the quality is to be judged from the subtleties.