Your iPhone can produce a pretty decent amount of light(roughly 40-50 lumens), but it has a few drawbacks. For instance, it’s not as powerful as a real flashlight, and it drains the phone’s battery. So while the iPhone flashlight is excellent for lighting up nearby areas, it’s not...
Is a tool required to change batteries? Light Output 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...
Flashlight brightness guide: how many lumens Lumens vs CandelasThis should be a useful start for beginners! What do you have to keep in mind before you upgradeThere are several ways to increase the brightness of your LED flashlight, but let’s discuss a few things first. Sometimes, you don...
A measure of how much light is reflected at different angles. Your perception of the brightness a flashlight puts out is determined not only by lumens but also by other factors. For example, a flashlight with 900 lumens and a standard lens will shine more brightly on an object in the ...
A basic hologram is easier to setup than you might think. HowStuffWorks It doesn't take very many tools to make a hologram. You can make one with: A laser: Red lasers, usually helium-neon (HeNe) lasers, are common in holography. Some home holography experiments rely on the diodes fro...
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,...
How bright is an Android phone flashlight? Most modern Android smartphones have fairly bright flashlights capable of producing enough light for most scenarios. Common flashlight LEDs in smartphones range from around 40 to 50 lumens. Yet it’s important to note that not all devices will have the...
Does light travel as a wave, a ray or a stream of particles? Is it a single color or many colors mixed together? Does it have a frequency like sound? And what are some of the common properties of light, such as absorption, reflection, refraction and diffraction? You might think ...
Similar to light bulbs, the higher wattage a light is, the brighter it is.How many lumens do I need for a space? When installing LED strip lights for homes, we often encounter the questions: how many lumens do I need for the space? How many lumens per square foot should be planned ...
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...