Testing a new headlight before you install it can save time, money, and frustration. Whether you’re checking a replacement ...

Some months into the new year, you will notice a big change in the lighting aisle of your local retailer or big-box store. The supply of 40- and 60-watt incandescent bulbs that accounted for 80 ...

So I asked manufacturers and installers of LED bulbs why it seems like the lights dim out way too fast. It turns out there are several reasons why this happens, and you can make a difference in ...

Lighting my home is something I only ever think about fleetingly — usually while replacing a blown-out halogen bulb — but this past week I discovered LED light bulbs and, well, I’m sorry I ...

One of the most common causes of flickering lights is an issue with the bulb. Fortunately, bulb issues are also the easiest ...

The impending ban on incandescent light bulbs has found many vocal opponents, including those who says CFL or LED bulbs just cant match the warm glow of an old-fashioned incandescent. We tested ...

You can use the circuits in figures 2 and 3 to test LEDs, regardless of their color. Place the forward-biased LED you would like to test and set S 2 to the lower position. The voltage drop across the ...

Evil Mad Scientist Labs brings us this easy to make LED blinking circuit. The idea is to put a LED in series with a small blinking incandescent bulb from a string of Christmas lights. The bulb has ...

If you use a standard bulb it behaves as the "medium" circuit, so you get the off-off-on-on behavior. You can get 3-way LED bulbs that have two independent circuits, but they cost more.

The X-tremeVision bulbs are a more affordable upgrade for those looking to increase light output without the expense of LED lights.

In this setup, each bulb is on its own circuit to the power source. The current is divided into paths, and since there is a separate path for each light, the rest of the bulbs will stay lit even ...

I put the warm-white bulb to a subjective test by using it in a table lamp that formerly used a 40W CFL (compact-fluorescent-light) bulb. Although the LED has a more directional light, which it casts ...