Skills Of Led Street Light Factory Equipment Installation
The wide application of 100w outdoor slim led floodlight in society has played a decisive role in the development of lighting engineering. Led Street Light Factory is a solid-state cold light source with the characteristics of environmental protection, no pollution, low power consumption, high light efficiency and long life. Therefore, 100w outdoor slim led floodlight will become the choice of energy-saving road lighting transformation. 100w outdoor slim led floodlight It is a high-efficiency solid-state light source based on a semiconductor PN junction that can emit light with weak electrical energy. Under a certain forward bias voltage and injection current, the holes in the P region and the N region are injected. After diffusing into the active region, the electrons emit photons through radiation recombination, which directly converts electrical energy into light energy. In particular, 100w outdoor slim led floodlight has made important contributions to society in terms of energy saving and low carbon. 100w outdoor slim led floodlight It is a high-efficiency solid-state light source based on a semiconductor PN junction that can emit light with weak electrical energy. Under a certain forward bias voltage and injection current, the holes in the P region and the N region are injected. After diffusing into the active region, the electrons emit photons through radiation recombination, which directly converts electrical energy into light energy. Now let’s talk about a few issues that 100w outdoor slim led floodlight should pay attention to in daily use:
- The power of 100w outdoor slim led floodlight must be constant current
The characteristics of the 100w outdoor slim led floodlight’s luminescent material determine its influence by the environment. If the temperature increases, the current of the LED will also increase. In addition, as the voltage increases, the current of the LED will also increase. If the rated current is exceeded for a long time, the service life of the LED lamp beads will be greatly shortened. LED constant current is to ensure that when environmental factors such as temperature and voltage change, the current value of the LED does not change.
2, 100w outdoor slim led floodlight power supply constant current accuracy
The constant current accuracy of some power supplies on the market is poor, the error may reach (+8%), and the constant current error is too large. The general requirement is (+3%). According to 3% design plan. Production power needs to be fine-tuned to achieve (+3%) error.
- 100w outdoor slim led floodlight power supply operating voltage
The recommended working voltage is 3.0≤3.5V, most of the working voltage is 3.2V, so the total voltage of series N lamp beads is more reasonable than 3.2V, and the total voltage of N lamp beads is 3.2V.
4, 100w outdoor slim led floodlight power supply is suitable working current
For example, the rated operating current of LED is 350ma. Some factories use 350 mA at the beginning, but the design is 350 mA. In fact, the operating heat at this current is very serious. After many comparison tests, the design of 320 mA is ideal. Try to reduce the heating value to make more electrical energy visible.
How wide should the series parallel voltage and wide voltage of the 100w outdoor slim led floodlight power board be?
In order to make the 100w outdoor slim led floodlight power supply work in a wide input voltage range AC85-265V, the parallel mode of the LED series lamp board is very important. Try not to use a wide voltage, it can be divided into AC 220 V, AC 110 V, as far as possible to ensure the reliability of power supply. Since the current power supply is generally a non-isolated BUCK type constant current power supply, when the required voltage is 110 V, the output voltage should not exceed 70V, and the number of series should not exceed 23 strings. When the input voltage is 220 V, the output voltage can reach 156 V. In other words, the number of character strings does not exceed 45. The number of parallel connections should not be too much, otherwise the working current will be too large and the power supply will be seriously heated. There is also a wide voltage scheme, APFC active power compensation first uses L 6561/7527 to increase the voltage to 400 V, and then reduces the voltage, which is equivalent to two switching power supplies. This program is only used under certain conditions.
Generally, if the isolated power supply is made of 15W, it is placed in a 100w outdoor slim led floodlight power tube. The transformer is large and difficult to put in. Mainly depends on the specific structure of the space, the isolation can only reach 15W, less than 15W, and the price is very expensive. Therefore, the cost performance of isolation is not high. Generally, non-isolation is more mainstream, and the volume can be made smaller, as small as 8 mm. In fact, non-isolation safety measures have been achieved without problems. Space can also be used to isolate electricity.