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You may also be wondering what lumens are. Lumen is a unit of measurement for brightness. It measures how much visible light a light source produces. Unlike watts, which are a measure of energy consumption, lumens measure the actual amount of light. Using lumens to compare the efficiency of light bulbs is useful because focusing on the actual brightness helps us choose more efficient and effective light sources.
The Importance of Lumens or Luminous Flux in Choosing Lighting Products
The importance of lumens or luminous flux in choosing lighting products is very high, because this unit of measurement shows exactly how much “visible light” a light source produces. Unlike “watts”, which only indicate energy consumption, “lumens” allow us to accurately compare the lighting power and efficiency of lighting devices.
Choosing light sources according to the lumen value is very important, because we can obtain equal or even more light than older and more inefficient methods with less energy consumption. For this reason, focusing on lumens in choosing lighting products can lead to increased energy efficiency, reduced electricity costs, and improved lighting quality in various environments. This concept is not only applicable in choosing lamps and projectors, but is also very important in lighting commercial, residential, and even automotive spaces.
The Difference Between Lumen and Watt
The difference between lumen and watt lies in how they measure and indicate the efficiency of light sources. Both units are important as they provide information about light and energy consumption, but they deal with different aspects of lighting.
What is a Lumen?
- Amount of Light Produced (Luminous Flux): Lumen is a unit that measures the total visible light emitted by a light source. In other words, it represents the actual brightness perceived by the human eye.
- Application: It is commonly used to compare the luminous efficiency of lamps and other light sources. Lumen helps us understand how much light a lamp effectively produces.
What is a Watt?
- Energy Consumption: Watt is a unit that measures the power consumption or the amount of energy required for a light source to function. Watt indicates the amount of electrical energy a lamp consumes to produce light.
- Application: In the past, watt was used as a benchmark for selecting lamps, but with the advent of efficient lighting technologies, wattage has become less significant for comparison.
Main Difference:
- Brightness vs. Energy Consumption: Lumen represents the actual brightness produced by a lamp, whereas watt indicates the energy consumed to produce that light.
- Energy Efficiency: LED lamps and modern technologies consume less power while producing equivalent or even greater light output than traditional lamps. Therefore, understanding the difference between lumen and watt helps us better grasp energy efficiency.
Luminous Flux or Lamp Lumen Output
Luminous flux or lumen (Lumen) refers to the amount of light emitted by a light source. In other words, lumen is a unit for measuring the quantity of light produced by a lamp. Here are some examples of lamps with different lumen ratings to clearly explain “What is a lumen?”:
- A 40-watt incandescent lamp produces approximately 450 lumens.
- A 60-watt incandescent lamp produces approximately 800 lumens.
- A 100-watt incandescent lamp produces approximately 1600 lumens.
Simply put, the higher the lumen number, the brighter the lamp. If you intend to choose a lamp with a specific brightness, paying attention to the lumen number can help you select a lamp suitable for your needs. For example, if you want a large and well-lit space, you should choose a lamp with a higher lumen rating.
Comparison of Lamp Types Based on Lumens
Now that you’ve understood the answer to the question “What is a lumen?”, let’s compare some common types of lamps. In comparing lamp types based on lumens, brightness is one of the most important parameters. The higher the lumens, the more light the lamp produces. When selecting the appropriate lamp, always consider the lumen value to ensure the best lighting with minimal energy consumption.
- Incandescent Lamps: These lamps have low efficiency and produce about 10 to 17 lumens per watt. As a result, they have high energy consumption.
- Compact Fluorescent Lamps (CFL): These lamps produce an average of 40 to 70 lumens per watt. They consume less energy compared to incandescent lamps, making them a suitable choice for reducing energy usage.
- LED Lamps: These lamps produce 90 to 112 lumens per watt, offering the highest luminous efficiency. They have lower energy costs and a longer lifespan compared to other lamps.
- Laser Projectors: These projectors generally produce slightly over 10,000 lumens of light and are recognized as a superior option with longer lifespans and higher efficiency.
Below is a table that compares the luminous flux of various lamps: (Note: The table content would typically follow here, but I can’t create tables unless specific data is provided for formatting.)
Shamim Andisheh Company is one of the pioneer companies in the field of building facade lighting in Tehran. The company was established in 1379 with the aim of consulting and implementing professional lighting projects. With years of experience and professional experts, Shamim Andisheh Company has been responsible for designing and implementing lighting projects and in some projects, has used custom equipment produced by its company.
Contact Methods for Shamim Andisheh:
- Phone: You can call using the following number:
- Head Office: 12-44071011 (021)
- Email: You can send your email to the following address:
- shamim@shamimco.com
- Website: Through the official website of Shamim Andisheh, you can send your message.
- Website Address: www.shamimco.com
- Social Media: Shamim Andisheh is active on social media platforms such as Instagram and LinkedIn. You can connect with them through these platforms:
- Phone for Social Media Contacts: 09394121002
