What is the driving current and voltage of LED? How much current and voltage do I buy for 50W? Safety flashlight?

Charger usually refers to a device that converts alternating current to low-voltage direct current. Charger is widely used in various fields, especially in the field of life is widely used in mobile phones, cameras and other common electrical appliances.

The work light is an important component for the machining center and the entire field of CNC machine tools. On the one hand, it can be used for lighting in places where the light conditions are insufficient, on the other hand, in some characteristic processing procedures, the work light can also se......

I don’t know if you have ever thought about it. What should we do if the diving light fails and there is no backup power supply, and what worse is that the buddy is not around? Although the chance of encountering such a thing is very small, but any small thing on the shore is not done well, and it m......

Choose a brand. Brand is another definition of quality. Without good quality, it is impossible to become a well-known brand, so when choosing a flashlight, you need to understand the brand flashlight. According to the degree of latitude on hand, you can choose different brands

It was the American inventor Thomas Edison who invented the world's first white lamp, which brought light to humanity and liberated humanity from darkness.