![]() LEDs have an outstanding lifespan of up to 25,000 to 50,000 hours. Highly energy efficient, using up to 85% less energy than traditional bulbs. Have a wide color temperature range, adjustable to various settings. Offer a range of brightness levels suitable for everything from indicator lights to floodlights. They are known for their efficiency and long service life. ![]() LED Lights LEDs produce light through a semiconductor that emits photons when an electric current passes through it. Typically, HIDs last between 2,000 to 10,000 hours. ![]() Usually exhibit a color temperature closer to daylight. ![]() Provide intense illumination and are often used for headlights in vehicles. This tube is filled with gas and metal salts, facilitating the arc’s initiation and maintaining its intensity. HID Lights HID lamps function by creating an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. Each has distinctive characteristics and advantages for specific uses. High-Intensity Discharge (HID) and Light Emitting Diode (LED) are two prevalent lighting technologies used across various applications. Both technologies are quite different in terms of their construction, performance, and efficiency. When choosing headlights, you often face a choice between HID (High-Intensity Discharge) and LED (Light Emitting Diode) systems. This way, we can compare the delivered lumens of both light technologies.Headlights are an essential component of vehicle safety, allowing you to see and be seen on the road. In other words, we measure the luminous flux of the HID lamp installed in a luminaire to measure its efficiency. When comparing the output of an HID light source to that of an LED light source, we examine a number of factors such as the life span of the light source, the lumen maintenance over time, as well as optical loss (specifically for the HID light source). Thus, in the case of LED lighting, we refer to absolute lumens. In the case of LEDs, the luminaire is tested, in which case optical loss is considered as a factor. This is why we talk mainly about delivered lumens. In the case of conventional technologies, such as HID, only the lamp’s intensity is measured. The expression Delivered Lumens (or Absolute Lumens) describes the luminous flux generated by a lighting system when factoring in the optical loss factor of this system. However, this does not mean that the luminaire will cease to function. So, when we state that a luminaire has a 72,000-hour lumen maintenance schedule, it means that we can expect to notice a reduction of light intensity after 72,000 hours of use. The human eye will only be inconvenienced when light intensity reaches a level of 30%. A 70% deterioration corresponds to the stage at which the human eye registers a decline in the intensity of light. We estimate the amount of light that the diodes produce when this luminaire diffuses 90% (L90), 70% (L70) or 50% (L50) of the quantity of initial lumens. These calculate the life span of a LED luminaire’s circuit board in hourly increments. In the case of lighting products that use an LED system, we refer to technical documents known as L90, L70 and L50. The gradual fading of a light source’s intensity is what renders the lamp or luminaire obsolete. However, in theory, it is everlasting, so long as there is an electrical current to feed it. In fact, an LED never ceases to function. Lumen maintenance is linked to the life span of a lamp or a luminary. Lumen Maintenance and L90/L70/L50 Documents In the case of an HID light, the measurement is calculated after 1,000 hours of use. In the case of an LED light, we must wait 45 minutes after initial lighting to measure this level as the diodes need time to stabilise. When we first turn on a light, its luminosity is at its highest degree: this is called Initial Lumen. Indeed, light intensity diminishes and becomes inefficient over time, though it does not cease to function. This article includes a few definitions of what lumens are as well as some different light source lumen intensity measurements./lead] Initial LumensĪll light sources fade over time. Thanks, in large part, to our industry’s innovative technologies, lighting products are now more efficient, while energy use has been reduced substantially. The modernization of lighting systems has generated a significant improvement in energy efficiency.
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