The new iPhone flashlight is a great resource to have. However, you might be wondering how many lumens it really has. This article will explain all of that information to you!
Flashlight brightness guide: how many lumens Lumens vs Candelas This should be a useful start for beginners! What do you have to keep in mind before you upgrade There are several ways to increase the brightness of your LED flashlight, but let’s discuss a few things first. Sometimes, you ...
Measured in lumens. This is a measure of the intensity of the light coming out of the flashlight on the highest brightness setting powered by new batteries. It may also be shown for multiple light settings. This is a great comparison tool, but does not tell the whole story about brightness...
The heat is enough to make the filament glow white-hot. Unfortunately, this isn't very efficient. Most of the energy that goes into an incandescent bulb is lost as heat. In fact, a typical light bulb produces perhaps 15 lumens per watt of input power compared to a fluorescent bulb, ...
LCD-based projectors tend to offer the sharpest imaging. Look for one with a brightness rating of at least 2,000 lumens. Video Source If you’ve heard the old saying “garbage in, garbage out,” it easily applies to home theater. A blurry, low-resolution video will look even more fuzzy...
In fact, a typical light bulb produces perhaps 15 lumens per watt of input power compared to a fluorescent bulb, which produces between 50 and 100 lumens per watt. Combustion offers another way to produce photons. Combustion occurs when a substance -- the fuel -- combines rapidly with oxygen...
The light is very directional. A laser light has a very tight beam and is very strong and concentrated. A flashlight, on the other hand, releases light in many directions, and the light is very weak and diffuse. Stimulated Emission To make these three properties occur takes something called...
One way to compare lamps is by looking at how much energy they need (measured in watts) to produce the same amount of brightness (measured in lumens). Dividing these two numbers, we get the number of lumens each lamp can produce for a single watt of energy. Looking at the chart here,...
A fluorescent light contains low-pressure mercury vapor bouncing around to produce ultraviolet light. Fluorescent lights are more efficient than incandescent light. They are capable of generating up to 100 lumens per watt, similar to the output of HMI. So what's that mean? It means that the sp...
How to use a flashlight or other light to spot building contaminants on surfaces. The fact that mold is "hidden" or hard to spot on some surfaces in buildings does not mean you cannot find it. While this is perfectly obvious to some folks, too many of us haven't considered that is yo...