LED flood lights may flicker if there are voltage changes in the fixture’s wiring. Current fluctuations are often to blame for the occasional flickering or flashing of an LED flood light . If your flood lights flicker when another appliance or electrical system is in use, a voltage fluctuation is likely to blame.
Why Is My LED Flood Light Flashing?
LED bulbs are used in flood spot light fixtures to produce reliable, bright color, energy efficient outdoor lighting. LED flood lights may flash or flicker for many reasons. Common causes include:
Fluctuations in the home or building’s voltage, such as when other appliances or electrical systems are in use, causing fluctuating loads.
High watt surges when an appliance or electrical system is turned on.
Loose connections, between the bulb and fixture or wiring within the fixture.
A bad dimmer switch. LED lights must operate with appropriate dimmers – the same dimmers you use with incandescent or halogen bulbs can actually cause flickering in LEDs. These switches reduce the volts to produce a dimming effect, which is not appropriate for LED bulbs.
Troubleshooting Flashing LED Lights
A flickering or flashing LED bulb does not necessarily mean the bulb needs to be replaced. In some cases, simple troubleshooting can solve the troublesome flashing, restoring function and saving you the cost of replacement. Try the troubleshooting tips below to resolve flood light flashing.
Check your electrical current. LED flood lights may flicker if there are voltage changes in the fixture’s wiring. Current fluctuations are often to blame for the occasional flickering or flashing of an LED flood light. If your flood lights flicker when another appliance or electrical system is in use, a voltage fluctuation is likely to blame. Solving fluctuating load issues within your electrical system can resolve flood light flashing.
Look for high watt surges. If your Led flood lights tend to flicker when other appliances come on, surge wattage could be to blame. When an appliance turns on and draws power, it can drain power required by the LED lights, dropping the home’s voltage.
Tighten connections. Loose connections may be to blame for a flickering light. If the LED bulb is not screwed in tightly to the fixture, flashing may occur – try tightening your flood bulbs. Loose wiring connections within the fixture may also be to blame. Disconnect power to your flood light circuit and tighten all wiring connections in and to the fixture.
Clean connections. If tightening your flood bulbs does not resolve flickering, dust or debris within the fixture connections could be causing the loose connection leading to flickering. Using compressed air, blow out the fixture’s connection point. Reposition the bulb and restore power once finished.
How to solve LED flashing issues?
LED flickering can be tied back to the driver component within the lamp. The essential purpose of the LED driver design is to rely on a simple circuit to control output current, but without altering the frequency, the LED becomes likely to show visible flicker. However, this can be fixed by using constant current drivers, which remove the peaks of the sine wave.
Power correction components within the driver circuit must also be addressed. Without this, ripple currents in the power flow will cause flickering.
Ultimately if the driver design of the LED bulb meets the requirements of both a stable DC current and ample ripple suppression, there should be no flicker. If flickering is present in your LED lamp (and you are not dimming with it), it was likely created with cheap driver components. The technology in LED lighting has advanced to the point where this should not happen, unfortunately, there are companies that care more about their bottom line than the health of their customers.
1. Because the electrician is disconnecting the electric switch, the power-off switch is connected to the neutral line, not the live line. The electrician knows that the power-off switch must be powered off with a live wire, otherwise there is a danger of electric shock. If the power-off switch uses the live wire, the firewire will continue to supply power to the LED drive power after the power is turned off, so that the LED light will have a faint light after the switch is turned off.
2. The switch is selected incorrectly. The switch with indicator light (excluding fluorescent light) is not suitable for controlling small power loads such as LED energy-saving lamps, because the current flowing through the indicator light is not small compared to the above-mentioned low-power load. A resistor of several hundred K in parallel at both ends of the load will be improved, or the indicator switch can be directly replaced, and the indicator of the cancel switch can also be used.