LED Street Lamp Manufacturers Remind You Ten Precautions for LED Street Lights

  Author :Green earth– LED Strip Lights manufacturers

LED street lights in the current social development, and the progress of the lighting project has played a decisive role, especially if the energy saving and low-carbon of the LED street lamps have made important contributions to the society. Here we have a professional LED street lamp manufacturer. 10 matters that the LED street lights of the daily use process should pay attention to.

1, LED street light power must be constant

The lighting material of the LED street light determines its affected by the environment, such as the increase in temperature changes, then the current of the LED will increase; the increase in voltage, the current of the LED will also increase. For example, the long-term exceeding the rated current, it will greatly shorten the life of the LED lamp beads. LED constant current is a change in environmental factors such as temperature and voltage, and it is also ensured that the current value of its work is unchanged.

2, LED street light power constant current accuracy

The constant current accuracy of the power supply in the market may be in the error.±8%, the constant current error is too large. General requirements±3% can be. Press 3% design. Production power supply is subject to fine-tuning to achieve±3% error.

3, LED street light power supply work voltage

General LED recommended operating voltage is 3.0-3.5V, tested, mostly working in 3.2V, so it is reasonable in 3.2V calculation. N light beads series total voltage = 3.2 * n

4, how much is the working current of the LED street light power supply?

For example, the rated operating current of the LED is 350 mA. Some factories use it in the beginning, design 350 mAh, in fact, the working heat is very serious under this current, and it is more ideal for more than 320 mA. . Try to minimize heat generation, so that more power can become visible light energy.

5, the string of the LED street light power board is parallel to wide voltage?

To make the LED street light power supply in the range AC85-265V in the input voltage range, the LED string of the light board is important. Try not to use a wide voltage to be divided into AC220V, and AC110V is as classified as possible, so that power reliability can be ensured. Since the current power supply is generally non-isolated bug constant current power supply, when the voltage is 110V, the output voltage should not exceed 70V, and the series is not more than 23 strings. When the input voltage is 220V, the output voltage can reach 156V. That is, the series is not more than 45 strings. There is not too much in parallel, otherwise the operating current is too large, and the power is heated. There is also a wide voltage scheme, APFC active power compensation is to raise the voltage to 400V with L6561 / 7527, then step down, equivalent to two switching power supplies. This program is used under certain conditions.

6, Isolation / non-isolated

Generally, the power supply is made of 15W, put it in the LED stream power supply, and its transformer is very large, it is difficult to put it in. It is mainly seen that the spatial structure is dependent on the specific circumstances. The isolation can only be achieved by 15W, more than 15W is very small, and the price is very expensive. Therefore, the cost of isolation is not high, generally non-isolated mainstream, the volume can do smaller, minimally do 8 mm, in fact, non-quarantined security measures is done, there is no problem. Space allowable to isolate power.

7, how can the LED street light power can do match with the lamp bead board?

In fact, select a best skewer and connected mode, plus the voltage current on each LED, and the effect of the power supply can play the best performance. The best way is to communicate with power vendors and tailor. Or produce a power supply.

8, LED street light power efficiency

The input power minus the output power value, this parameter is especially important. The lower the value, the lower the efficiency, it means that the input power has a large part of the conversion to heat generation; if it is installed in the lamp, it will generate a very high temperature. In addition, adding a light efficiency of our LEDs, it will superimpose a higher temperature. And the life of all electronic parts inside our power supply will be shortened with the temperature rise. So the efficiency is the most power life The fundamental factor, the efficiency cannot be too low, otherwise the heat consumes too much on the power supply. Non-separated efficiency is higher than the isolation, generally over 80%, but the efficiency is related to the matching method of the light board.

9, LED street light source cooling

The main factors of the heat dissipation scheme are LED street lamp beads that can prolong life without hot conditions, and generally use aluminum alloys, it is easier to heat dissipation. That is, the LED street light power bead stick is on the aluminum substrate, and the external area is exteriorously expanded.

10, LED street light power dissipation

The main factors of heat dissipation are LED stream power beads that can prolong life without hot conditions, generally use aluminum alloy radiators, easier to heat dissipation. That is, the LED street light power bead stick is on the aluminum substrate, and the external area is exteriorously expanded.

The above ten matters analyzed the attention points of the LED street lamps in detail, and reasonable application will increase the service life of the LED street light, reduce production costs, I believe that no one will be very interested.

LED Street Lamp Manufacturers Remind You Ten Precautions for LED Street Lights 1

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