Flickering lights are a staple in horror stories and every ghost movie. “Whether it’s a movie cliche or in real life, there’s a reason why movies use flickering lights,” says one electrical professional. Flickering lights make us feel uncomfortable; even tense. “The real-life effects of light flicker can range from annoyance, distraction and discomfort, to headaches and even seizures,” he concluded.
Invisible Flickering Lights
Most homes are wired for alternating current (AC). AC can switch power back and forth, while DC (direct current) flows in one direction. DC lighting is sometimes called “low-voltage” lighting. The fact is, flickering lights occur in most artificial light sources.
AC wiring is simply more energy efficient.
In 2017, NEMA (National Electrical Manufacturers Association) established light-flicker guidelines. LED (light-emitting diode) bulbs have reduced light bulb flickers, but they can also flicker in a way we don’t see. This can impact productivity in offices and commercial businesses as well as negatively affect our health.
When You See Lights Dim and Flicker
Never ignore the dangers posed by dimming and/or flickering lights. They can cause shocks, electrocution, burns, or other injuries. When lights flicker, there might be sparking that could cause a catastrophic house fire.
You’ll create an even bigger problem if you try to solve a flickering lights problem yourself. If there’s electrical damage resulting from a DIY (do-it-yourself) wiring fix, your insurance may not cover the expenses for loss and damages.
If you have dimming or flickering lights, make note of:
- Appearance – Is it barely noticeable or extremely annoying?
- Consistency – Does it occur every time you plug in one particular appliance or happen occasionally with any appliance?
- Frequency – Has it happened once or does it often occur?
Here are 4 reasons your lights may dim or flicker:
- Fluorescent bulbs – These will naturally flicker when “warming up.”
- Loose bulbs – Flickering lights occur because of inconsistent electrica