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: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:What are the benefits of a modular LED street lamp?

LED modular lamp benefits: first heat better, beads scattered, heat accumulation is relatively small, the heat dissipation requirements will be lower;

Q:Materials required for LED street lamp installation

In addition to the bulb is not the same, the other did not change greatly, much easier than other lights installed, the current is also small, the line can be smaller.

Q:How to detect the leakage of LED street lamp poles?

LLED street lamp: LED street lamp (Light, Emitting, Diode, light emitting two stage tube), that is, semiconductor lighting. It is a kind of form based on semiconductor pn junction with weak electricity can light efficient solid-state light source, in a positive bias voltage and injection current, injected into the P region of the hole and injected into the N region electron in diffusion into the active region after radiation and emit photons, the electric energy can be directly converted into light energy. It is a solid cold light source. It has the characteristics of environmental protection, pollution-free, less power consumption, high light efficiency, long life and so on. Therefore, LED street lamp will be the best choice for road lighting energy-saving reconstruction.

Q:How much solar panels and batteries do 9W+10W solar light sources use for solar street lamps? LED

The system comprises a solar battery component part (including bracket), LED lamp, control box (with controller and battery) and lamp parts; solar panels light efficiency reached 127Wp/m2, higher efficiency, is favorable for the wind resistant design of the system; the cap portion with 1W white light LED integrated on a printed circuit board arranged for certain the lattice spacing as plane light source.The control box body is made of stainless steel, and the utility model is beautiful and durable, and the maintenance free lead-acid battery and the charging and discharging controller are arranged in the control box. This system chooses the VRLA battery, because of its little maintenance, so it is also called "maintenance free battery", the system is conducive to the maintenance cost is reduced; the charge and discharge controller both functions in the design (with light control, time control, overcharge protection, over discharge protection and reverse protection etc.) and cost control, to achieve a very high price.

Q:Do ballast ballasts need to be used for starting the LED street lamp?

LED requirements are constant current power supply, some can also use switching power supply, but the cost is relatively high

Q:What are the necessary tests for the factory inspection of the LED street lamp?

High power LED light source (1W-200W), and heat radiation aluminum housing, as well as LED constant current source (power supply). At present, the market LED street lamps are divided into two major categories

Q:400W high pressure sodium lamp can replace 150WLED lamp? Luminous flux?

The life of LED street lights is much higher than that of high pressure sodium lamps, which are generally replaced by LEDLuminous flux comparison, it must be high sodium light, but the light efficiency of sodium lamp utilization is not high, many light is invalid, but also poor color rendering, LED generally do white light, see clearly, bright

Q:Excuse me, LED experts. How many watts do LED street lights usually have on the roads?

LED has higher light efficiency, and can reduce the power configuration properly. It can be selected in the 50%-80% of the sodium lamp as appropriate