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The LED flashlights are bright – but how bright, exactly?

Looks like I’ve been obsessed with flashlights for a long time. Probably started when Magellan Lights became popular in the 80’s. Mini megalight powered by 2 AA batteries that I really liked. So small that you could carry it around and it was so bright that it could be really useful. When I was a little older, I used to make and edit my own flashlights. One of my pets was a water light that I used for diving. It ran on a large lead-acid battery and was powered by a 25-watt projector bulb. That thing was great (but not very moving).

These days, you can get some of these extremely bright LED lights. They’re cheap and they last a long time, so I guess there’s no point in trying to find a stylish flashlight right now. But there is always a point to doing some drugs! So my next step is to separate talent – that’s what I do.

The flashlight I have is rated at 900 lumens. But is hack a lumen?

In the early days, they did not use fancy LED flashlights or measure equipment with a computer. No, they only used candles. In fact, the lemon unit comes from the candle. Yes, a real candle. Technically, it’s from a standard candle – a candle that produces a special, reproductive honey. As soon as a candle produces light, it spreads and decreases in intensity, and if you combine the intensity of a candle with the whole circle, you will get a total case (technically). Bright Flex – which looks pretty cool). A candle will glow 4π lumens (4π comes from the region of a sphere).

But wait! How is this different from total power? Yes, if you have light it emits energy at any time which can be counted as power (in watts). For a typical light, most of this power will be in shapes that cannot be perceived by the mortal eye – such as objects in infrared dipasson. Therefore, brightness in lumens is the only mortal sensible thing. Really, this is for stylish people because in the early days of Wisdom the only light sensor that could be used was the Eye of Death.

Related: Olight Warrior Mini 2 flashlight!

Still, I don’t really want to use my eyes if I want to measure the brightness of a flashlight. Eyes do not give numerical value as a matter. Which means it’s about to be the most delusional time of the year, as well. I’m going to use a light detector (I’m using this cord) – but it doesn’t measure brightness. It measures the intensity of light (at least that’s what I call it but others call it light). This is the visible brightness per unit area and is measured in lux.

Since this can be confusing, let me use a metaphor. Suppose you have a piece of paper that is in the rain and getting wet. There are two effects to considering your wet paper. First, is the rate of rainfall. It can rain hard or soft. It’s like the intensity of light. Second, the rate at which water hits the paper. It depends on both the rainfall rate and the size of the paper. Total rain that hits the paper will be like bright flux (in lumens).

Featured videotape

The staff chooses white and white digital LED timepieces.
To calculate the luminous flux, I can measure the intensity of the luminosity and assume that it is constant over an area. Intensity and area production will give me luminous flux in lumens. So that’s what I’m going to do. I will take my flashlight and flash it on the light detector. I will also measure the size of the light space it does (in square measurements). If the intensity is constant throughout the area, I just need to multiply the area and the value of the lux.

Still, since I like to make graphs, I’ll make some changes. My flashlight can produce a variable space size. That means I can compass the intensity. Divided by a spot area. The pitch of this line should have a luminous flux. let’s do it. (Then there is the online plot)



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