Q:Technical requirements for LED street lamps

The technology is mature day by day, and the efficiency of light source has reached over 100lm/W, which makes it possible to save energy in urban street lighting. LED street lamps, especially large power LED street lamps, are attacking the traditional street lamp market at a tremendous speed.High power LED street lamp, as its name suggests, is power greater than 30 watts, using a new type of LED semiconductor light street lamps. The standard is generally the illuminance uniformity of the road surface, which conforms to the illumination of the road. The actual 1/2 center spot reaches 25LUX, and the 1/4 center light intensity reaches 15LUX, the minimum light intensity is 4LUX at 16 meters, and the overlap light intensity is about 6LUX. Refers to the use of solar panels for the supply of power LED street lamps. The conversion rate of 1. light is 17%, the solar energy per square meter is 1000W, and the actual utilization efficiency is 170W

Q:What's the reason why the LED street lights don't work?

The LED lamp power is waterproof power, bad to change new power protection function is not perfect, directly affect the quality of fault phenomenon LED lamp 2, bad part there are several possibilities: 1), such as LED lighting power supply for multi-channel constant output, which may be a group of bad, 2) is LED chip is not good, or is the LED lamp cooling caused by bad burn LED chip.

Q:How high should the installation height of the LED street lamp be?

In order to avoid glare, you can choose the f (d) (E), the installation height of street lights should not be less than 4.5m. The distance between the poles of the street lamp can be 25 to 30m, and the distance between the lamp posts entering the curve should be reduced appropriately.

Q:What qualifications does LED street lamp product need? Do you need 3C certification?

3C certification is in fact the English name "China Compulsory Certification" (China Compulsory Product Certification System) in English abbreviation, but also the country's mandatory product certification of the use of a unified mark. As the national safety certification (CCEE), import safety license system (CCIB), China Electromagnetic Compatibility Certification (EMC) three with a "CCC" certification authority, and the State Administration of quality inspection China is a sign of advanced recognition standards and international supervision committee, has irreplaceable importance.

Q:What's the reason for the flash of LED street lights?

That's ok:1, the other 18 pull a pair of power lines.2, the front 18 lights closed, leaving only the back 18 can be confirmed.3, the first 18 and the latter 18 do not start at the same time.

Q:Can the LED power supply be used as street light power supply?

Pay attention to 2 aspects:Relevant parameters should be met! Such as power, voltage, current, etc.Street lighting power should be waterproof, anti lightning and grounding.

Q:What are the main differences between a LED street lamp and a solar street lamp? What are the advantages and disadvantages of each?

It is two kinds of concept that do not conflict, it is the explanation of street lamp from two angles, can make LED solar energy street lamp completely.

Q:LED street lights generally use how many W, how much density is more appropriate?

Most of the 1W with LED, taking into account the heat and street size, the general LED spacing about 30MM is more appropriate

Q:Does the LED street lamp need a starter?

LED light is not a starter, is a constant current source module, is 220V city power rectifier, with constant current circuit to each LED lamp power supply; LED lights can be connected in series, and then parallel. There is also not constant current, but in each series of branch current limiting resistors, to consider the range of voltage fluctuations, select the current resistance resistance value and power.

Q:The power supply of LED street lamp has no influence on the grounding power. The possibility that the power supply will burn out is not big enough

The ungrounded words are easy to produce static electricity is not good for the lamp and IC.