Phase-Cut Dimming Instruction
“Phase-cut” dimmers means the ones which work by taking the line input power (120V “house power”) and modulating the signal to reduce the power to the load. By “chopping” the signal, the load experiences a lower voltage, resulting in a softer light output. Now there are two most common “phase-cut” controls: forward phase controls and reverse phase controls. Each has its benefits and limitations.
FORWARD VS. REVERSE PHASE Control
-Forward phase control generally uses semi-controlled devices; SCRs are used as switching chopper devices. It can smoothly dim down to 10% light levels. Forward phase control modulates the input power by turning ON in the middle of the cycle and turning OFF at the end of the cycle.
–Reverse phase control generally uses fully-controlled switching devices (such as IGBT, MOSFET or bipolar transistor BJT) as switching chopper devices. It can dim smoothly down to 5% light level.
Reverse phase control modulates the input power by turning ON in the beginning of the cycle and turning OFF in the middle of the cycle.
BENEFITS OF FORWARD PHASE DIMMING
Forward phase dimming is the most common dimming method used in the U.S. It still has many important benefits, including:
- Perfect for incandescent lamps. This kind of control can work well with incandescent lamps, which are widely used.
- No re-wiring is needed to use forward phase dimming.
- You can boost the energy efficiency of your incandescent lights significantly and extend lamp life by using forward phase dimmers
- It works with magnetic low voltage light sources, which can handle loads up to 10,000 Watts. They also protect magnetic transformers from overheating or suffering damage due to voltage surges.
- It also works with neon, cold cathode, and some LEDs compatible with incandescent.
- LED drivers designed to work with a two-wire forward phase dimmer controls help eliminate common “bugs,” such as flickering, ghosting, pop-on, and drop-out.
- Forward phase dimmers are the overall least expensive option.
BENEFITS OF REVERSE PHASE DIMMING
Reverse phase dimming must be used when electronics are used with low-volt systems. Here are some advantages of reverse phase control:
- You can enjoy extreme silence when using it when your operation is within the full dimming range.
- Though a reverse phase dimmer is more expensive, it has a much longer duration.
- It usually gives you better overall control and a smooth dimming experience.
- It generally works better with LED light sources and all low-voltage electronic systems.
Different Types of Dimmer Switches
There are many different styles of dimmers switches in the market right now. You can definitely choose one that fits your needs the most.
They are of a classic style. You can use the rotating knob to adjust the lighting level.
Just as its name suggests, toggle dimmer switches up and down like a regular switch. However, the light level returns automatically to its previous settings.
Slide dimmer switches slide up and down. The operation of them is simpler. They are also available in preset or slide-to-off designs.
Rocker dimmers are one of the favorite choices for home lighting. They resemble a rocker switch that rocks up and down the light until you find your desired light level.
Tap Dimmers are also popular for smart homes. This kind of dimmer includes a touch pad or button controls. They also have the function to preset the light level.
As the name suggests, Scene dimmers resemble multiple buttons that enable you to switch to different light levels.
Compatible Dimmers for Ensenior Lights
Our lights are compatible with most dimmers of forward control. Forward control dimmers can work well with LED lights for your home.
Below is the dimmer recommendation list for our lights: