---
title: "Xingguang | High bay beam angles 60° / 90° / 120°"
description: "60/90/120 is not about brightness, it is about spacing: at 8 m a 90° optic gives a pool about 16 m across, a 60° only 9 m. For the same area that means nearly twice as many fixtures."
url: "https://www.xingguanglightingcn.com/en/spec/high-bay-beam-angle"
lang: "en"
updated: "2026-10-28"
markdown: "https://www.xingguanglightingcn.com/en/spec/high-bay-beam-angle.md"
---

[Home](https://www.xingguanglightingcn.com/en/) / [Selection by specification](https://www.xingguanglightingcn.com/en/spec/) / High bay beam angles 60° / 90° / 120°

# High bay beam angles 60° / 90° / 120°

60/90/120 is not about brightness, it is about spacing: at 8 m a 90° optic gives a pool about 16 m across, a 60° only 9 m. For the same area that means nearly twice as many fixtures. A narrow optic saves energy but multiplies mounting points, and that has to be costed together with wiring and suspension, not per fixture.

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

## Key parameters

| Power | 100–240 W |
| --- | --- |
| Mounting height | 6–15 m |
| Beam angle | 60° / 90° / 120° |
| Distribution type | Narrow / medium / wide |

[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 Narrow / medium / wide. 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° / 120° at 6–15 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](https://www.xingguanglightingcn.com/en/glossary#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

[High bay](https://www.xingguanglightingcn.com/en/glossary#high-bay)[Illuminance](https://www.xingguanglightingcn.com/en/glossary#illuminance)[Unified glare rating](https://www.xingguanglightingcn.com/en/glossary#ugr)

![LED High Bay HBL-048](https://www.xingguanglightingcn.com/assets/img/prod-hbl048.webp)

### [LED High Bay HBL-048](https://www.xingguanglightingcn.com/en/products/high-bay-light-048)

200W

## Need a Lighting Plan?

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

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[All specification pages](https://www.xingguanglightingcn.com/en/spec/)