It’s important to note that watts and lumens are two distinct quantities. A Watt is a unit used to measure the energy consumption of a lighting fixture, while lumens is a measure of the intensity of light produced by a light-emitting fixture. Just because a lamp consumes more energy does...
How to measure light in foot-candles, lumens and lux and the basic references that will help you to do so.
Before you begin testing LED bulbs with a multimeter, it’s important to gather the necessary tools and equipment. Here is a list of items you will need: Multimeter: The multimeter is the main tool used to test the LED bulb. It is a versatile device that can measure various electrical pr...
They use significantly less wattage to produce the same amount of light. In fact, a 6 Watt LED bulb can produce the same brightness as a 40 or 50 Watt incandescent bulb. So, how do we measure the brightness of an LED bulb? The answer lies in lumens. Lumens are used to quantify the...
it’s a measure of how much energy a bulb consumes to reach its claimed brightness. We’ve already said goodbye to 75- and 100-watt incandescent light bulbs, and starting January 1, 2014, we’ll also be saying goodbye to 40- and 60-watt bulbs as well. This is due to the Energy In...
Back in the day, the wattage of the bulb was an easy measure of its brightness — the higher the wattage, the brighter the bulb. This is still a perfect tool when you're referring to incandescent bulbs, but unfortunately this doesn't carry over to the brightness of LED bulbs. Below we...
Lumens, on the other hand, are a direct measure of light output or brightness. Therefore, when selecting a bulb, looking at the lumens will give you a better indication of its brightness, while wattage will inform you about its energy consumption. For instance, an LED bulb might only use ...
Step 2: Use a device to measure the increased brightnessNow it’s time to prepare something else. You probably have a mobile phone with a light sensor (not every cellphone has one). So, please go ahead and download a Lux meter app. ...
To measure the amount of the grow light inside the grow tent, use aPAR Meter. Measuring light is important to ensure the optimal PPFD values to make plants thrive and yield. Using a PAR meter shows how much energy the grow light gives off and what lands on the plant. The optimal range...
In the case of blue, a blue filter will cause only blue light to emit from the halogen bulb. With all the other colors being blocked, a large amount of light is taken away, making the bulbs dimmer. Lumens, the measure of light’s brightness, are another important aspect, especially if...