In the realm of industrial architecture, no two warehouses are exactly alike. The diversity in ceiling height—ranging from standard 6-meter storage units to massive 15-meter logistics hubs—and the variation in aisle widths create a complex challenge for lighting designers.
Because the spatial dimensions vary, the requirement for illumination intensity (Lux) differs significantly. This leads to a critical demand: finding the right LED lens that matches the specific power rating (Wattage) of the fixture, while simultaneously maintaining low glare.
To meet different brightness requirements without compromising visual comfort, ASAHI has designed several classic UFO LED high-bay lens series products, with power ranging from 100W to 300W.

Light intensity and visual comfort
When warehouse ceilings go higher, lighting fixtures need more power to push light down to the floor. However, increasing the wattage often increases the risk of harsh glare, which can be dangerous for forklift operators and fatiguing for workers.
A 300W fixture needs a larger optical surface to distribute heat and light effectively compared to a 100W fixture. Using an undersized lens for high power results in poor efficiency; using an oversized lens for low power wastes material costs.
The Solution: A Dedicated Family of UFO Lenses
ASAHI offers a variety of standard-sized UFO lenses, each optimized for a specific power range. This allows manufacturers to select the precise LED lens size that matches the output power and thermal design of their luminaires.
- 100W Application: 184mm Diameter (Compact and concentrated)
- 150W Application: 226mm Diameter (The standard mid-range choice)
- 200W Application: 265mm Diameter (High output balance)
- 250W-300W Application: 293mm Diameter (Maximum coverage for extreme heights)

These different types of UFO lenses have undergone rigorous optical design and simulation testing, enabling highly concentrated light output. By forming a sealed and focused beam, they ensure precise illumination of the target area without light spillage.
Combined with our high‑quality PC‑1250Z material, these lenses achieve high light transmittance while effectively controlling the beam and reducing glare, making them an ideal choice for industrial lighting applications that demand both intensity and precision.
Conclusion
Whether you are lighting a vast distribution center or a focused manufacturing plant, selecting the correct lens diameter and angle is crucial. Asahi Optics provides the flexibility you need with our comprehensive range of LED lenses for high bay applications.
Ready to optimize your fixture performance? Contact us today to test our 100W-300W UFO lens series.