LED Lighting china

 Third, the application of skin effect

LED Lighting china

Conductor alternating electromagnetic field intensity with depth into the conductor exponentially decreasing, so sunscreen mixed conductor particles (usually zinc oxide and titanium oxide), can make the sun's ultraviolet rays (high-frequency electromagnetic waves) the strength of the reduced. This is one of the principles of physical sunscreen. In addition, the skin effect is one of the electromagnetic shielding methods, the use of the skin effect penetration of high frequency electromagnetic wave can be prevented and made of a good conductor of electromagnetic shielding device, which is also the elevator, the reasons for poor mobile reception. In industrial applications, the use of the skin effect can be surface hardening of the metal. Ceiling Light

led digital tube (LED) is a semiconductor light emitting device, the basic unit is a light emitting diode. Digital tube divided by the number of segments and eight seven-segment digital tube  Ceiling Light digital tube, eight digital tube more than a seven-segment digital tube light emitting diode unit (one more decimal point); press to show the number "8" can be divided into 1, 2, 4,  LED Down lights  and so digital pipe; press emitting diode unit connection into common anode and common cathode digital tube digital tube.