Lighting

Quick answer: Bypassing a fluorescent ballast means disconnecting or removing the ballast and wiring the fixture so Type B LED tubes receive power directly at the lampholders. It can eliminate ballast failures, but it is line-voltage electrical work. The safe path is to buy the exact LED tubes first, follow their wiring diagram, confirm shunted … Read more

Quick answer: Size an LED light bar fuse from the actual circuit current and wire size, not from a guess. First estimate amps with amps = watts / volts, then choose wire that can safely carry the load and handle voltage drop. The fuse or breaker should protect that wire and should be installed close … Read more

Quick answer: Most 4-foot LED shop lights are roughly 30 to 60 watts per fixture. At 120 volts, that is about 0.25 to 0.50 amps each. A common 40W 4-foot LED fixture uses about 0.33A because 40W / 120V = 0.33A. Use the formula amps = watts / volts, then plan the circuit for all … Read more

Quick answer: A 20W LED is often marketed as roughly similar to a much higher-watt incandescent or halogen light, but the useful comparison is lumens, not watt-equivalent claims. Many 20W LEDs land around the small floodlight, task light, or supplemental garage-light range, depending on optics and efficiency. 20W LED: What To Compare Spec What it … Read more

Quick answer: IPL and LED devices are not the same kind of light source. IPL uses broad-spectrum, high-intensity light pulses. LED devices use narrower light output from light-emitting diodes. This page is a technology comparison, not medical advice; do not use it to diagnose, treat, or choose a skin/eye treatment. For health or cosmetic treatment … Read more

Quick answer: When an LED light suddenly stops working, first decide whether the problem follows the bulb, stays with the fixture, or affects the whole circuit. A screw-in LED that works in another socket points to the fixture or power. A fixture that stays dead with a known-good bulb points to the socket, switch, GFCI, … Read more

Quick answer: Do not ignore a flickering LED pool light. Simple causes include color-show mode, controller sync, low-voltage transformer problems, or a failing LED driver. Serious causes include water intrusion, damaged cord, bad bonding/grounding, failed GFCI protection, or loose wiring. If the light is in or near pool water, keep people out of the pool … Read more

Quick answer: Flickering does not always mean an LED bulb is burning out. A bad dimmer match, loose socket, unstable driver, heat buildup, smart switch leakage, or fixture problem can all make a good bulb flicker. Treat flicker as a symptom: check the pattern before replacing parts. Burnout Sign Or Fixable Cause? What you see … Read more

Quick answer: LED dusk-to-dawn lights usually flicker because the photo-eye is seeing reflected light, the sensor is partly shaded or dirty, the fixture is connected through another photocell/timer/motion control, or the LED driver, socket, wiring, or photocell is starting to fail. First check the pattern: flicker only at dusk/dawn usually points to sensor placement or … Read more

Quick answer: LED ceiling fan lights usually flicker because the LED bulb, wall dimmer, fan remote receiver, or light kit was designed around a different electrical load. Start with the low-risk checks: tighten the bulb, test one known-good dimmable LED bulb, confirm the bulb wattage is allowed by the fan light kit, and see whether … Read more