It is understood that the type of lightning is divided into two categories, namely direct lightning strikes and lightning. Thunderstorm for thunderstorm activity in the area, lightning discharge electricity is about 25 ~ 100C, whereby the …

During the 119th Canton Fair, the picture of a Shenzhen trading company became an overnight hit in ceramics export groups on wechat because a banner read “USD 1.99/sq.m UP”, which was the extremely low price in the export sector, was shown…

How to distinguish the LED lamp and LED tube light? Many people believe that the LED lamp and LED tube light is used for household lighting should belong to the same kind of product, actually otherwise. We can often from both the position …