Luminous Flux ≠ Luminous Efficacy, How to Choose the Right “Energy Efficiency King” for Industrial Scenarios?
In the field of industrial lighting, Luminous Flux and Luminous Efficacy are two core parameters, but they are often confused. As a supplier of industrial tri-proof lamps for 10+ years, TUBU will explain why high lumen lamps may not be energy-saving in this article. How to choose the real cost-effective LED tri-proof light through the parameter appearance?
Luminous flux and luminous efficiency: definition and essential differences
Luminous Flux (Luminous Flux)
Definition: the total light energy emitted by the light source in a unit of time, the unit is lumen (lm).
Analogous understanding: like the faucet “water”, the larger the value, the brighter the light.
Industrial demand: high bay warehouse needs ≥ 120lm/W, precision assembly line needs ≥ 150lm/W. 2.
Luminous Efficacy
Definition: The efficiency of converting each watt of electricity into luminous flux, unit lm/W.
Analogous understanding: like “water-saving faucet”, the higher the value, the lower the energy consumption.
Industry Benchmark: The luminous efficacy of ordinary LED lamps is about 80-100lm/W, while TUBU's industrial grade solution reaches 140lm/W+.
Key Conclusion
Luminous efficacy = luminous flux ÷ power, so high lumen fixtures if the power is too high, the luminous efficacy may instead be lower. Industrial users need to prioritize the choice of high luminous efficiency products, rather than simply the pursuit of high lumens.
Industrial scenarios: why is luminous efficacy more important than luminous flux?
In industrial environments, energy efficiency costs account for up to 30%, and the equipment needs to run 24 hours a day. An auto parts factory as an example:
Traditional program
100W sodium lamp, luminous efficacy of 60lm/W, annual electricity costs ≈ 43,000 yuan.
TUBU program
50W LED tri-proof light, luminous efficacy of 140lm / W, annual electricity costs ≈ 13,000 yuan.
Single workshop annual electricity cost savings of more than 30,000 yuan. The whole factory transformation can save hundreds of thousands of dollars.
The core value of high luminous efficiency:
Directly reduce electricity costs: every 10lm/W light efficiency, energy costs by about 8%.
Reduce heat dissipation pressure: low temperature rise design to extend the lamp life (TUBU product life ≥ 50,000 hours).
Intelligent control: High luminous efficacy fixtures are easier to realize 0-10V dimming or microwave induction energy saving.
Luminous efficiency selection strategy for different industrial scenarios
Scene type/Recommended luminous efficacy (lm/W)/Core requirement/TUBU solution
High-shelf warehouse/logistics center/120-140(lm/W)/uniform illumination, low maintenance cost/IP65+IK08 protection, light distribution optimized U-type lamps
Precision assembly line/140-160(lm/W)/No flicker, high color rendering/CRI>90, anti-glare honeycomb grille
Chemical/food workshop/130-150(lm/W)/corrosion resistant, easy to clean/316 stainless steel bracket, IP69K protection
Outdoor engineering lighting/100-120(lm/W)/Impact resistance, wide temperature working/IK10 protection, -40℃ low temperature resistance
The Future of Industrial Lighting is “Light Efficiency Prioritized
In the era of Industry 4.0, the requirements of smart factories for energy efficiency have gone beyond basic lighting functions. TUBU realizes the double breakthroughs of light efficiency and luminous flux through the four-dimensional innovations of light source, optics, driver, and heat dissipation, providing the optimal solution to the whole life cycle cost for global industrial customers.