The Philips L Prize Winner A19 LED, $44, would have been our top 60-watt equivalent ... sensor or a photocell that turns lights on at dusk and off at dawn. The lightbulb Ratings show which bulbs ...

Almost a month ago I started trying to reverse engineer an inexpensive LED color changing light bulb. With your help I ... the red/green fader happen every 2 seconds. The other scrolls through ...

The common items in this case were “filaments” from LED light bulbs, those meant to mimic ... bent brass U-channel and mounted to an oak base via turned stanchions. The seven-segment displays ...

XenonPro’s HID bulbs are rated at up to 8,000 lumens of output per pair, making them as much as 2.5 times ... for 35-watt bulbs. Cougar Motor says each bulb is laser aligned to the base during ...

In CFLs, electric current energizes argon and mercury vapor, which in turn causes a phosphor coating inside the bulb to emit light. New halogen bulbs look like the incandescent bulbs people are ...

When the lights go out, you're in the market for a bulb replacement. But if choosing between CFLs, halogen or LEDs leaves you in the dark, our guides will separate the fact from the hype for each type ...

Get the power of Which? in your pocket by downloading our app, giving you on-the-go access to our reviews Get the power of Which? in your pocket by downloading our app, giving you on-the-go access to ...

If so, replacing all those lights with smart light bulbs can get expensive quickly. A cheaper way is to install a smart light switch, which lets you control all the lights from one spot.

With a soft exterior that diffuses lighting, the brightness of the LED bulbs inside the Neon Rope Light 2 isn't overwhelming ... with a healthy 800-lumen in the 60-watt versions.

Red light therapy applies specific wavelengths of light (usually around 630 nanometers) onto your skin. This wavelength can penetrate 2 to 3 millimeters below the skin, and cause positive ...