![]() ![]() If you need a little more assistance with how to figure out the lighting arrangements that are best going to suit your home or office, speak to a lighting professional and they will be able to assist with brightness, illumination and wattage. If you make that area bigger, to say 10m², but still have a measurement of 1,000 lumens, the illumination level in that area will be 100 lux. If you have an area of 1m² with a measurement of 1,000 lumens, there is an illumination level of 1,000 lux. If you are a little confused that is understandable, so let's take a look at an example. In simple terms, 1 lux = 1 lumen/m² which relates to the amount and brightness of light being emitted in a designated area. There is also lux to lumens, which is calculating illumination to brightness. ![]() A 60W incandescent bulb emits 800lm, which is the same as a 42W halogen, a 13W CFL or a 10W LED.The higher the lm/W, the more energy efficient a bulb is. LEDs emit around 80 lumens per watt (lm/W), compared to 14 lm/W created by a similar halogen.1250lm = 150W incandescent light bulb watts = 37.5W fluorescent/LED watts.1500lm = 100W incandescent light bulb watts = 25W fluorescent/LED watts.1125lm = 75W incandescent light bulb watts = 18.75W fluorescent/LED watts.Here are a few other examples to help you out a little more: This is usually referring to the actual relationship that watts and lumens have, as opposed to them equalling one another. It is important to understand that lumens do not 'equal' watts, however, there is lighting packaging out there that may have the term 'equivalent watts' written on it. In other words, lux is the amount of light that is emitted out into a designated area by a light source. Lux is the measurement of light intensity, otherwise referred to as 'illumination' or 'illuminance'. This, therefore, means the LED light uses less energy to achieve the same brightness level as the halogen, making it more cost-effective and energy efficient. To give an example, a 42W halogen bulb has the same brightness, or lumens, as an LED that uses 10 watts. Lights do not need high wattage to attain higher brightness levels, resulting in numbers not being the same as before. This, therefore, resulted in people relating watts with brightness but, with the introduction of more energy-efficient lighting options, this is no longer the case. The reason for the misunderstanding is easy to explain though - in the past, a lot of incandescent light bulbs emitted the same amount of light as watts, even though they were produced by different companies. Watts are actually a measurement of how much energy a light uses, so is more related to energy consumption. In general, people believe that watts = brightness, which isn't actually 100% correct. You've likely heard of watts before, with the 'W' that is located on a majority of lighting packaging. The light that is being created must be visible to the naked eye, with lumens generally being utilised to calculate how bright a light is. Lumens are a measurement of how much light is being produced by a light source, and are termed 'lm'. What is a lumen?įirstly, there are lumens. This will make the calculations a little easier to understand (hopefully). To start, we will take a look at some definitions of major lighting terms - lumens, watts and lux. If you have any further questions, give All Purpose Trade Solutions a call on 1300 370 455 and we will be happy to assist. We have collated a guide as to how to calculate lumens to watts and lux to lumens, as well as some comparisons between the lighting types, so you can confidently choose your next light globe with ease. With this in mind, we thought we'd do some of the hard stuff for you - calculations. There are so many options available, with different brands and types and strengths making things a little trickier to manoeuvre than they used to be. When it comes to lighting these days, it's not as simple as heading to the shop and picking up a new globe. ![]()
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