Lumen

Light and light bulbs. Lumens and lux.  Most of us are well-versed with the first two. Not so much the last two. Both are crucial light measuring units, albeit a little confusing. You probably agree with that, but you’re also wondering, how are lumens measured for light bulbs? What about lux? Unlike what you might …

You may have noticed the term Lumens on your bulbs and bulb packaging. Next to the name is what may appear to be a random number. It turns out that this number is far from random. It’s the lumen number, and it determines whether the bulb will give you the amount of light you hoped …

Humans see and put all kinds of artificial lights to good use—such as flashlights, headlights, fluorescent lamps, etc. As consumers of these lights, have you wondered why certain lights are brighter or not as sharp as others? If you stare straight into a car’s headlight at night, you may end up damaging your cornea. The …

Long gone are the days we used to measure our lighting strength by watts! Now, with lumens (lm for short), we can have a better understanding of the brightness of the light detectable by the human eye.  Buying bulbs based on their varying degrees of watts found in traditional halogen or LED bulbs is no …

It’s common knowledge that lightbulbs produce heat after a certain period. However, what most people don’t know is where this heat comes from. Do lumens produce heat? Or does it have something to do with the lamp’s wattage?  In this article, we explore the different units of measurements used in illumination tech to figure out …

If you’ve been browsing your local lighting aisle or online stores you’ve probably come across the terms Candlepower and Lumens printed on the side of light bulb packages. Don’t worry, the product inside is the same.  With these new units of luminous intensity and luminous flux, we can more accurately measure the intensity of the …

As you embark on your journey to illuminate your home, the copious amounts of Watts and Lumens can quickly become muddled up into a confusing mess. Don’t worry; it doesn’t have to be that complicated.  Why do some light bulbs have fewer Watts but more Lumens?  What is the difference between the two?  Keep reading …

Have you ever wondered exactly how many lumens the sun produces?  Considering it’s one of the biggest light sources known to man, capable of illuminating entire countries at a time, the number must be massive.  Although there isn’t an exact science that we can use to determine just how bright the sun is, there are …

Is it finally time to replace those old lightbulbs in the living room? Perhaps you’re simply looking for a way to make the dining room chandelier a little brighter?  In the past, people bought light bulbs based on the amount of energy they consumed.  However, as information became more available to the general public, people …

We’ve all probably tried to (accidentally) look at a bright light at least once in our life.  You may have experienced temporary light blindness, but nothing too serious to cause any concern.  Still, it’s normal to wonder “how many lumens are bad for your eyes?” or “how much does it take to actually cause blindness?”  …

We’re well aware that staring at a screen for hours a day, especially without breaks, can lead to eye-strain. But what about when you settle in bed to read afterward? What is the best light bulb choice for your bedside table or study desk?  Is it possible to become a victim of eye strain from …

Understanding the specifications of projectors is an excellent way to ensure that you know what you’re getting. Knowing what you’re paying for is critical now that the projector market is flooded with options that vary widely in quality and features. Lux and lumens are terms that are thrown around a lot in stores and on …

The amount of lumens that a movie theater projector might produce would depend on the actual size of the screen. For example, if you go to an IMAX theater, that projector would use more lumens than a regular-sized movie theater projector would need to. Generally, a movie theater projector’s brightness ranges between 40,000 to 60,000 …

Projecting in daylight can be a tricky endeavour if you are not familiar with the capabilities of your projector. Direct sunlight produces a staggering 120,000 lumens of brightness, which isn’t available in any projector in existence. Does this mean projecting in daylight is not possible? No, you should tackle this problem with some common sense. …

How many lumens does it take to start a fire? There is no one answer to that question. There is however a good estimate. It takes around 2300 lumens of LED light to get hot enough to start a fire quickly in the right conditions. You need to remember that lumens are not a measure …