A poor-quality LED bulb isn't the only thing that can cause the glow. If you're using switches with motion sensors or timers, the LED bulb may draw power from their circuits and emit a faint glow.

Instead of simply replacing the outdated bulb, we decided to build a small dark detecting circuit with 2 yellow LEDs based on this Evil Mad Scientist Laboratories design.

LED light bulb are known for their long lifespan, but if yours aren't lasting as long, there are a few possible causes for their premature dimming.

My home has numerous LED bulbs, be them in recessed fixtures, hanging fixtures, and standing lamps. ... Reaching the power circuit of this bulb required destroying the base, ... They contacted me and ...

If you wanted, you can make a similar circuit with 10 or 20 bulbs. Just connect them all in a line so that the same current goes through each one. This is a series connection.

Some of these could be replaced with a working bulb, but not all. The other type of circuit light strands use is a parallel circuit. In this setup, each bulb is on its own circuit to the power source.