We test the 1000W LED flashlight, delivering an incredible 90,000 lumens. See its brightness, range, and whether it’s truly ...

Lumen is a measurement of light output emitted from a source, whereas lux is a measurement of illuminance, or the quantity of light hitting a specific area. The most common way this is explained is ...

When flashlights came up, I researched ANSI’s standards and interviewed manufactures to see how they test their lights. Ultimately, I designed, built, and calibrated the integrating sphere we use for ...

Maglite set the standard for tough flashlights, but Rayovac, Coast, and LED Lenser now make even brighter bruisers. We put one torch by each manufacturer through an abusive lab test to find the best ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s 2024, and most of us technically have a flashlight with us all times with our smartphones, but we ...