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One of the issues of 12v led strip lights is one of the latest challenges still yet to be fully solved. Dimming Light emitting diodes is theoretically easy, because analogue dimming, that is the adjustment of current, has long been an option. However, this method only works safely when used with one LED bulb. Systems of LEDs demand a modern-day method of dimming. The 2 basic types of dimming are the PWM or Pulse-Width-Modulation and the analogue dimming, both of which are switched-mode regulators. These two types are similar in the sense that they both control the time-averaged current through the diode.

Analogue dimming is a very simple method of dimming, it will be the adjustment of cycle-by-cycle from the LED current regulated with a potentiometer. The current is adjusted for the LED increasing and decreasing its intensity.

The disadvantage of analogue dimming is that it only works safe as long as we dim one particular bulb. Systems of LED lights need a more refined technique. The issue of dimming a system of Leds is that there are many types of LEDs, requiring various methods for dimming. If there is a process of lights we want to dim, the different LEDs may react diversely towards the equivalent amount of current, and as the current is reduced some LEDs can make off later or sooner than others. Also, analogue dimming largely changes the colour in the light, similarly to when it is used in combination with incandescent lights.

By far the most commonly used technique of dimming LEDs is Pulse-Width Modulation, which can be simply the cutting of the phase at a certain frequency. PWM switches the devices between fully on and fully off in a frequency that can not be told from the eye, therefore LED bulbs always run on the forward current recommended. The frequency of switching determines the brightness of light, therefore the longer the lighting is “on” the brighter the light is going to be. Here is the same technique found in incandescent light dimmers also, with the exception that incandescent lights react to current more slowly, and therefore require a different frequency.

Two kinds of Pulse-With Modulation signals are employed often with dimming light: the leading-edge and also the trailing edge techniques. Both of these are not the same methods for cutting the phase, and result in separate dimming technologies. The most commonly used dimmers of LEDs use solely the key-edge technology. Dimmers marked as R or RL are compatible with most LED dimmmable 12v, because they work with the top edge technology and never include electronic transformers. TRIAC drivers, or devices governed through the DMX and digital addressable lighting interface (DALI) protocols and, in the future, might include wireless (RF) as a control option, that is certainly dimmers that turn or slide with a knob, all assist dimmable LEDs.

Alas leading edge technologies controlled having a touch or push button, are frequently powered by an electric powered transformer, excluding many dimmable LEDs.

The other type of phase-cutting method is trailing edge technique, usually utilized in MOSFET or is not suitable for the majority of dimmable LEDs. One of the latest inventions appearing on the marketplace is the RAIS lamp technology. RAIS lamps offer a higher amount of functionality and seem to work with all sorts of dimmers available on the market. However RAIS technology is qtjzkb new, and its long-term impact on LEDs have not been fully tested. If they prove to be trustworthy their application both domestically and commercially, can come to be much safer and easier than previous dimmable LED lights’.

Within the ever-evolving technologies of LED lights, LED ac110VDC12V driver remain to become designed to further compatibility and better performance. As there is no general rule for what dimmer your LED could be appropriate for, make sure the technical details using the distributor. Application of LED lights with non-compatible dimmers might ruin the LEDs, and they are generally, right now, not the least expensive solution of lighting.