When to use LUT-MLC?

The LUT-MLC load adapter is provided to help ensure proper operation of the switch with LED, CFL, fluorescent, and ELV lighting loads. When controlling one of these load types, a LUT-MLC may be required, especially at lower wattages.

Does a light fixture have a neutral?





A standard box for a light fixture will have three wires, a white (neutral), black (current), and copper (ground.)

Which lighting wire is neutral?

Identify the neutral wire in the fixture by looking at the wires. In most modern fixtures the neutral wire will be white and the hot wire is red or black. In some types of fixtures, both wires will be the same color.

How do I install LUT-MLC?

Connect one lead of the LUT-MLC to the neutral (white) wire. 2. Connect the other lead of the LUT-MLC to the switched hot (black) wire. Verify that the LED on the switch is not flashing or solid red color and that the load stays off when the switch is turned off.

How do you fix ghosting LED lights?

3 options here:

  1. Change the LEDs to an approved product- may not solve the problem.
  2. Change dimmer to the PD-6ANS- most likely would solve or at least reduce the “ghosting” you are experiencing.
  3. Try the LUT-MLC- lots of posts on this, Lutron reluctantly has mentioned the MLC with dimming now.





How do I get rid of LED ghosting?

Electronic dimmers without neutral connections need a return path when the light bulb (load) is off to power the circuit inside the dimmer. This capacitor provides a lower impedance return path for the dimmer to bypass the bulb when “off” which reduces or eliminates LED ghosting.

Can you wire a light without a neutral?

The neutral wire allows the completion of the circuit and the switch to have power even when it’s turned to the off position when you want the lights off. Without this neutral wire in place, the circuit is broken any time the switch is now in the off position. It remains has power when the switch is in the On Mode.

What happens when neutral wire is disconnected?

If a neutral wire gets disconnected, then the appliances will not work, the fan may get burn, choke in the tube may burn, and current starts flowing through the neutral wire. If you insert the tester in the neutral point (socket) then it will indicate like a phase.

Can you install a light switch without a neutral wire?



Yes, you can install a smart switch without a neutral wire. There are some smart light switches and dimmers that do not require a neutral wire. These are great for DIY installers looking for an effective smart lighting solution. For example, Lutron Caseta devices do not use a neutral wire.

What causes LED ghosting?

What causes LED bulb ghosting? In most cases, when you turn a standard dimmer off, the electronics inside do not receive any power. Caseta wireless digital smart dimmers still need to receive a small amount of power to be able to receive RF signals. This tiny bit of current can cause this bulb ghosting phenomenon.

How do you fix a ghost current?

It can be cured by adding a lighting capacitor in parallel with the light fixture, providing a path to neutral sufficient to pass most of the ghost current rendering to voltage at the outlet to low to activate the lamp.

Why is light still on when switch is off?



A ceiling light might stay on when the switch is off due to its wiring. If the light is connected directly to the hot wire, it will maintain the electrical current whether the switch is on or off. To fix this issue, the light has to be connected to the switched leg conductor.

Why does my LED bulb glow when off?

What happens is that the serial connection of the glow lamp clamps the circuit even when you turn the switch off. This, in turn, causes a low voltage drop to appear to LED driver, and as a result the LED bulb glows weakly.

Why are my LED lights not turning on?

Bad Pin Connection – If your LED strip light fails to turn on at all, then check your pin connections. Most likely, the pin is not inserted correctly. In rare cases, the pin is faulty. These tiny connectors are rather delicate items so you have to be very careful when inserting them.

Why do my LED lights keep turning off and on?

It’s most likely the power supply/transformer if it’s older than 3 to 5 years. If your power supply is outside or in a place where there isn’t much air circulation, it will deteriorate more quickly. The power supply may be thermally shutting down when it gets too hot and then resetting once it cools down.

What can go wrong with LED lights?



Most Common Problems with LED Lights

  • Using the wrong current.
  • LED bulbs overheat.
  • Low quality solder and wire bonds.
  • Improper use of LED lighting.
  • Issues with color rendering.
  • Existing fittings and fixtures are incomparable.
  • Light Emitting Efficacy.
  • Overly complicated circuits.

What happens if you put too little voltage through an LED?

As we mention above, under-driving LED strips by using a lower voltage than its rated voltage is completely safe and has no detrimental effects on the LEDs or the circuitry. If anything, by driving them below their rated current, the LED strips’ theoretical lifetime and longevity will be even longer.

How do you wire an LED light fixture?

Quote from the video:
Quote from Youtube video: The first one is the prior multimeter the wire strippers and then the screwdriver in addition to the tools you are going to need a ladder. So you can reach the ceiling.