---
title: "Xingguang | Glare-controlled high bay | LED Lighting"
description: "Glare control comes from three things: recessing the source, a prismatic or honeycomb diffuser, and narrowing the beam. The cost is 10–15% of efficiency. In a hall where people look up all day — assembly, inspection — that 15% is worth paying…"
url: "https://www.xingguanglightingcn.com/en/spec/glare-control-optic"
lang: "en"
updated: "2026-10-28"
markdown: "https://www.xingguanglightingcn.com/en/spec/glare-control-optic.md"
---

[Home](https://www.xingguanglightingcn.com/en/) / [Selection by specification](https://www.xingguanglightingcn.com/en/spec/) / Glare-controlled high bay

# Glare-controlled high bay

[Glare](https://www.xingguanglightingcn.com/en/glossary#ugr) control comes from three things: recessing the source, a prismatic or honeycomb diffuser, and narrowing the beam. The cost is 10–15% of efficiency. In a hall where people look up all day — assembly, inspection — that 15% is worth paying; in an unmanned high-bay warehouse it buys nothing, because there are no eyes there, only racks.

[Get a Quote](https://wa.me/8613809877696)

## Key parameters

| Power | 100–200 W |
| --- | --- |
| Mounting height | 6–10 m |
| Glare (UGR) | UGR<19 / <22 |
| Beam angle | 60° / 90° |
| Distribution type | Recessed source with prismatic diffuser |

[Product family: High Bay Lights](https://www.xingguanglightingcn.com/en/product-categories/high-bay)

## The distribution decides where the light goes

Two fixtures with the same wattage and the same flux can put a twofold different [illuminance](https://www.xingguanglightingcn.com/en/glossary#illuminance) on the floor, purely because of distribution. This page is Recessed source with prismatic diffuser. Distribution decides three things: the shape of the pool of light, how much of the flux reaches the floor, and whether the spacing can be opened up.

A common misjudgement is comparing distributions by centre illuminance. A narrow beam usually wins at the centre point and loses badly at the edges, giving a lower average. Compare average illuminance plus uniformity (minimum over average) — those two numbers match what people actually see.

## Angle and height come as a pair

This page is 60° / 90° at 6–10 m. The direction is unambiguous: the higher the ceiling, the narrower the optic, or the light lands on the walls; the lower the ceiling, the wider the optic, or the floor gets discrete bright spots and hard shadows under each fixture.

Rule of thumb: pool diameter ≈ 2 × height × tan(half angle). At 10 m, 90° gives about 20 m and 60° about 11.5 m. Sketch the layout with that first and ask for a photometric calculation second — the other order usually costs a revision.

## Four things to verify before ordering

① Whether flux and efficacy are quoted for the complete fixture or the light source — a 10–15% difference that changes the fixture count. ② Whether [colour temperature](https://www.xingguanglightingcn.com/en/glossary#cct) and CRI are measured or nominal values; mixed CCT within one batch is the most common arrival dispute. ③ Driver brand and model, plus its derating curve at high temperature — it is the only part that really sets life. ④ The mounting kit list: chain, bracket and anchors in the box, or the site stops for a day.

## Concepts on this page

[Unified glare rating](https://www.xingguanglightingcn.com/en/glossary#ugr)[High bay](https://www.xingguanglightingcn.com/en/glossary#high-bay)[Colour rendering index](https://www.xingguanglightingcn.com/en/glossary#cri)

![LED High Bay HBL-036](https://www.xingguanglightingcn.com/assets/img/prod-hbl036.webp)

### [LED High Bay HBL-036](https://www.xingguanglightingcn.com/en/products/high-bay-light-036)

150W

## Need a Lighting Plan?

Tell us your scenario, Jie Zhai will help you choose.

[Get a Quote](https://wa.me/8613809877696)
[All specification pages](https://www.xingguanglightingcn.com/en/spec/)