Outdoor work environments, from construction sites to agricultural fields, demand reliable lighting to ensure safety, productivity, and precision. Two critical metrics in lighting design—illuminance and luminous flux—play pivotal roles in determining the effectiveness of outdoor work lights.
Luminous Flux (Measured in Lumens): This represents the total visible light emitted by a source. Think of it as the "raw output" of a lamp. A 10,000-lumen floodlight, for instance, emits more light than a 5,000-lumen counterpart.
Illuminance (Measured in Lux): Illuminance quantifies light falling on a surface (lux = lumens/m²). A 10,000-lumen light might provide 100 lux on a 100 m² area but 200 lux if focused on 50 m².
Calculate Luminous Flux Needs can use the formula:
Total Lumens = Desired Lux × Area (m²). Adjust for efficiency losses (add 20–30%).
For example, if a 1000-lumen light source is evenly distributed over an area of 1 square meter, the illumination is 1000 LUX; if it is distributed over an area of 10 square meters, the illumination is only 100 LUX. It can be seen from this that luminous flux does not directly reflect the distribution effect of light in space.
When choosing lamps, you should consider "illuminance" rather than just "luminous flux". For users, what really affects the working environment is the illumination, not the total luminous flux of the lamp. When choosing LED lamps, you should focus on the following points: 1. Evaluate the actual illumination required. Determine how much lighting is needed for a specific space. For example, an office workspace would recommend around 500 LUX, while aisles in a warehouse would require around 200 LUX. 2. Pay attention to lighting design. Make sure the fixture distributes light effectively to the target area, rather than wasting light where it is not needed. 3. Overall benefit considerations. Not only should we pay attention to the purchase cost of the lamps, but also consider their power consumption and the actual illumination they provide, so as to achieve "how much money you spend, how much illumination you get".
In the era of LED lighting, luminous flux (LM) is no longer the only indicator. Illuminance (LUX) is the core factor that reflects the actual effect of lamps. With "illuminance" as a guide, we can better choose the lamps that are truly suitable.
Shenzhen GOODLIGHT’s LED lights not only have efficient luminous flux, but also focus on precise light distribution, ensuring that every investment you make can be exchanged for ideal illumination effects.