Incandescent dimmer control LED smart lights you guess what?

The number of wisdom network news, the purchase of LED bulbs are very selective, but compatible with LED dimmer is difficult to pick. Many users will be very confident that, with the traditional incandescent dimmer can be, and now the market is the most visible SCR dimmer, DC and AC two, with good use on the incandescent lamp.

Choose the right color temperature, suitable lumen level, suitable for the beam angle of the LED light is dimming requirements. It is possible to use a silicon controlled rectifier to adjust the LED bulb light, but in most cases, a lot of problems will occur, as opposed to the normal dimming of ordinary incandescent lamps.

Four conditions:

Most of the problem is buzzing buzzing or strobe. Ordinary incandescent lamp only need to adjust the voltage can adjust the light and shade, but for the LED lamp may not work, we do the experiment, there are four cases:

1 can not be opened, simply do not light!

2 can only be 100% of the light intensity often bright.

3 can work but the buzzing sound is very loud.

4 in the regulation of a certain brightness will occur when the strobe.

Dimming principle:

At the time of the test, sometimes the LED dimming to a certain limit after the normal use. The reason why we judge a lot of time is not bright, dimmer voltage is too small to reach the desired voltage.

The LED internal circuit is much more complex than the incandescent lamp, the real LED dimmer is not just the voltage regulator, the LED dimmer has three principles:

1 wave width control dimming: the power of the square wave digital, and control the duty cycle of the square wave, so as to achieve the purpose of controlling the current.

2 constant current power supply: analog linear technology can easily adjust the size of the current.

3 packet control: the number of LED grouping, with simple packet control.

Attention strobe:

Stroboscopic most, the reasons are as follows: adjustable resistance itself is not a very reliable components, often because of dust entering or manufacturing process is not strict, the adjustable resistor will be in operation when the fault moment of a gap, then the light will be flashing. So it is necessary to have a high quality adjustable resistor, or use the linear technology to regulate the current rather than voltage.

In fact, LED's internal drive function itself can easily adjust brightness, but most of the LED vendors will remove the function to save costs, LED lamp dimming can usually in the box will be marked, if not marked on the box, please use the dimming function, or use special LED optical device.

Dimming will reduce life:

To be reminded, dimming is easy to reduce the life of the bulb, why? A simple dimming mode: we put a second into 1000 parts, each part is 1 milliseconds, and then through the control chip, LED lights work out 7 ms 3 ms, so in a second time it just 0.7 seconds, but the blink interval soon, we find it not the naked eye the brightness in the flicker, will only feel its dimming, is 0.7 times the original, which achieves the dimming effect. Similarly, we can achieve 50% brightness, brightness and other brightness of 32%. Blinking in this way, it's not bad!

In order to avoid a variety of problems, as far as possible, do not use the light bulb light physical method, took out his cell phone, open the APP adjust the most simple.

Editor's note: in fact, I still prefer to use the way to adjust the brightness of the packet device, simple and safe and easy to use, touch button switch or independent packet switch can easily get. From 0 to 100% to adjust the brightness of the light in the home is not necessary, can achieve a few stalls can be adjusted on the light and shade, you can respond to the needs of.

For more information about LED, please click on China LED network or pay attention to WeChat public account (cnledw2013).