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LED flashlight, how many V and how much W is it related to?

LED flashlight, how many V and how much W is it related to?

Answer:

LED flashlight brightness, first look at LED, different LED brightness is different, such as Q5<R5<T6, of course, domestic and imported LED difference is also very large, not only quality, brightness is not the same. There is the current, and in fact the standard voltage or power is the same, there is no essential difference
Usually the letter "U" stands for voltage, and the unit of voltage is "volt", referred to as "volts". The symbol is "V."When voltage is very high, kV is usually used as a unit. When voltage is low, mV is used as a unitW (Watts) is the unit of powerPower * time is power consumption
V is the unit of voltage in volts. The potential difference: the difference in electrical potential between two points in the electric field is called the potential, also called voltage. Definition: charge in the electric field in a mobile A to another B, the ratio of WAB/q electric field force work WAB and electric charge q called A B with UAB potential difference between two points. That is, UAB=WAB/q

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