Q:What is the starting current of the LED street lamp for 220V and 30W?

But the influence is very small, so it can be considered as the starting current is the rated current, and the rated current = power / voltage = 30/220 = 0.136A

Q:LED street lamp, glass lens, mold opening, research and development

The two light distribution design must be carried out on the basis of the primary light distribution design of the LED light emitting device. Once, the light distribution design is to ensure the quality of each LED light emitting device, and consider taking the light emitted from the LED chip as much as possible. And the two light distribution design is to consider how to focus the light emitted by the LED device on the desired lighting area, so that the light energy delivered by the whole system meets the design requirements. In a sense, only the packaging design (that is, once the light distribution design) is reasonable, in order to ensure the smooth realization of the system's two light distribution design, thereby enhancing the lighting and display effects.

Q:What is the heat dissipation principle of a LED street lamp?

The light is a bit more concentrated than the living lights! A little more than the spot light!LED Street heat is mainly rely on heat conduction, that is, rely on their own aluminum cooling, as well as outdoor air circulation and rainy days of rain heat.Hope to be of help to you!

Q:Is the street lamp good with LED or solar energy?

LED refers to the light source lamp, solar street lamp refers to the power supply mode of lamp, solar street lamp through panels convert solar energy to electricity stored in batteries, the night lights for electroluminescence, it does not require additional electricity, energy saving and environmental protection.

Q:How is the rated current of the LED street lamp holder?

The rated power of the lamp cap is divided by the input voltage and then divided by the power factor.

Q:What is the active power of LED street lamp? What is the relationship between input voltage and current and power?

Here, we define the phase angle advance as positive, and the phase angle lag as negative. The actual load is resistance, inductance, capacitance inductance capacitance of three types of complex, composite after referred to as "impedance", written in mathematical is: Z= R+j. where R is the resistance impedance, XL inductance, XC capacitance. If > 0, known as the "perceptual load"; conversely, if < 0 called capacitive load. Alternating current through the inductive load, the phase voltage of the alternating current phase advance; alternating current through the capacitive load, the lag phase alternating current AC voltage; electrical engineering definition of the power factor angle phi angle of power factor angle phi Cos phi is called the cosine value of power factor. For resistive load, the voltage and current of the phase difference of 0 degrees, therefore, the power factor of the circuit is 1 of the maximum; and pure inductance circuit, voltage and current phase difference of 90 degrees, and is a leading current voltage; in pure capacitance circuit, voltage and current phase difference is - 90 degrees. The current leading voltage. In the latter two circuits, the power factor is zero. For a general load circuit, the power factor is between 0 and 1. By mathematical impedance Z=, R+, J, if XL = XC, then Z= R, that is, impedance Z becomes a pure resistor, power factor is equal to 1.

Q:How to judge the light type of LED street lamp?

Either for the manufacturer to provide, or to do their own spectral analysis, the naked eye is not visible

Q:How can a LED street lamp protect against lightning strikes?

Internal lightning protection system must be connected with external lightning protection system of overvoltage protector or set in many devices such as housing, import and reserve cable, metal pipe, and equipotential connection.

Q:What is the function of the microcontroller on the LED street lamp?

In the LED street lighting scheme, the microcontroller should be used to tune the PWM input, or FM

Q:What happens if the LED street is ungrounded? Is it a big problem?

The LED itself is very sensitive to lightning surge currents, which can cause damage to the human body by electrostatic touch and burn chips or leads. Therefore, the street lighting circuit must be grounded.