Once upon a time, when choosing a light bulb, its power was the decisive factor. However, today's market offers us many light sources, including LEDs, so we should also pay attention to other parameters, such as: luminous flux or luminous efficiency. How to choose the right lighting then?
Luminous Efficiency
The luminous efficiency is determined by two factors - flux and luminous power. The first parameter is defined by the unit lumens (lm), the greater its value the brighter the light. However, a power counted in watts (W) is required to generate the light beam. Depending on the quality of the light source, we can produce a specific amount of light, i.e. the luminous flux, from a certain amount of energy. The ratio of lumen to watt gives us the luminous efficacy (lm/W). The higher this parameter is, the the lamp is more effective, and thus consumes less electricity and is environmentally friendly.
Useful Lumen
Incandescent lamps consume a lot of energy, but 90% of it is converted into heat instead of light. The same problem is with the amount of visible light. The bulbs shine in all directions, so some of the light is wasted and some is absorbed by the material. Therefore, we must take into account the useful lumens, taking into account all losses resulting from the optical and power systems. Here it is revealed how the efficiency of the LED lamps. This problem does not apply to them. Their beam angle is directed, and all the light they emit goes to the room.
Luminous Efficacy Of Conventional Incandescent Lamps Versus LED Technology
The luminous efficiency of LEDs can be as high as 300 lm/W, which is over 18 times more than traditional light bulbs (16.6 lm/IN). Although LEDs are a more expensive light source, they are worth choosing due to their high energy efficiency and long life. Such an investment will pay for itself quickly. LED lighting can also generate many shades of light, from white through neutral to warm. Thanks to this, we can create a space, increase its functionality and coziness. LED light efficiency is used in many industries. LED Lighting for a car wash and lamps for paint shop allows you to take care of your work comfort and save money in situations when light is needed all day.
The high luminous efficiency of LED fixtures is a key factor when choosing the right lighting. By understanding parameters such as luminous flux, light output, lumens, luminous efficacy (expressed as lm/W) and useful lumens, you can make an informed choice that will save electricity and money, while maintaining high quality lighting. The introduction of LED lighting can be beneficial for both users and the natural environment by reducing energy consumption and CO2 emissions. Understanding the principles of luminous efficiency allows you to choose lighting that will not only meet your aesthetic expectations, but will also be economical and ecological.