Q:What is the display index of the LED lamp?

The degree to which an object's color is rendered is called color rendering.Usually called the color rendering index (Ra)A light source with a Ra value of 100 indicates that the color displayed in the light of the object is consistent with that under the standard light source.

Q:For the LED street light distribution, is it better to use a lens or a reflector?

According to personal needs, the last time I went to a lighting shop called Zhongshan Ming lighting shop to buy lights, but also asked the question, but do not remember what the salesman said

Q:How to use ZigBee intelligent LED street lamp

Because every time there is a street lamp, through the method of adding repeaters, ZigBee can now add more than 60 thousand devices for a city should not be a problem, if more street number more than 60 thousand, can be divided into several pieces respectively. In general, the distance from each repeater is about 70 meters, and it will be better if there is no blocking outside, and hundreds of meters are no problem at all. If the effect is not good, you can add a repeater in the middle to resolve it.

Q:LED street lights are different from high pressure sodium lamps (both street lamps), as well as superior power consumption

LED power saving, energy saving, high brightness, strong penetration of sodium lamp, but it is very expensive

Q:Why do street lights use bat wings to match the light curve?

Make full use of light. LED light is diffuse type, not only will be the problem of uneven illumination glare.

Q:Does the LED street lamp 80W or 100W need to be compensated by a single light capacitor?

Capacitor compensation is reactive power compensation or power factor compensation. The power system of electric equipment in use will produce reactive power, and is usually inductive, it will make use of the capacity of power efficiency, and by increasing the capacitance of the way properly in the system can be improved.

Q:How much is the LED terminal voltage of the solar street light controller v?

General digging machine LED terminal voltage, 12V, 24V, 36V, street lights 36V more.

Q:How to connect the lightning arrester of LED street lamp?

Protection end is divided into two, power supply side, if it is PVC line pipe, then in the bottom of the metal rod configuration protection rectifier power supply, constant current regulator source. Protection level is level 3-4.The fifth stage of LED is the lightning protection parts of lamps and lanterns, and the low-voltage potential precise clamping protection. Ensure 24V or 36V DC voltage safety. The tip here is an exact clamp.

Q:Why is the higher the current, the lower the light efficiency?

What I know is: junction thermal resistance, spectral distribution drift

Q:Features of LED street lamps

LED street lamp has automatic control energy saving device, which can realize the maximum possible reduction of power and save energy in meeting different lighting requirements. Can realize the computer dimming, time control, light control, temperature control, automatic inspection and other user-friendly features.