---
title: "Xingguang | emergency High Bay Lights | LED Lighting"
description: "Putting an emergency battery inside a high bay costs you thermal headroom: a battery living in a 45 ℃ chamber loses about half its life per 10 ℃. That is why emergency packs usually get their own compartment or a remote box…"
url: "https://www.xingguanglightingcn.com/en/spec/high-bay-with-emergency-backup"
lang: "en"
updated: "2026-10-28"
markdown: "https://www.xingguanglightingcn.com/en/spec/high-bay-with-emergency-backup.md"
---

[Home](https://www.xingguanglightingcn.com/en/) / [Selection by specification](https://www.xingguanglightingcn.com/en/spec/) / emergency High Bay Lights

# emergency High Bay Lights

Putting an emergency battery inside a [high bay](https://www.xingguanglightingcn.com/en/glossary#high-bay) costs you thermal headroom: a battery living in a 45 ℃ chamber loses about half its life per 10 ℃. That is why emergency packs usually get their own compartment or a remote box, and why the battery temperature grade must be chosen against the measured body temperature, not the ambient.

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## [Key parameters](https://www.xingguanglightingcn.com/en/glossary#ip-rating)

| Power | 100–150 W |
| --- | --- |
| Luminous flux | 13,000–19,500 lm |
| Mounting height | 6–10 m |
| IP rating | IP65 |
| Colour rendering | Ra>80 |

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

## Which step the option actually changes

An option leaves the light output alone and touches three things: when it comes on, how long it stays on, and whether it stays on when the mains drop. Whether it earns its price is a question about the site — who operates the switch, and whether anyone has to walk out during an outage — not about the fixture.

The cost that gets left out is wiring: a sensor or emergency fixture needs a permanent live plus a switched line (or an emergency supply line), and retrofitting an old circuit means new conduit. If the quote excludes that, the site adds it later — often at close to the price of the fixtures.

## When to add it and when not to

The case for adding it is specific: the fixtures sit at 6–10 m where nobody can reach them, the switch is inconvenient, or people have to find their way out during an outage. The case against is just as specific: 24-hour process lines, and sites that already run a central control system — a second layer of control only adds a failure point.

Emergency options carry one hard constraint: the duration and the emergency flux come from the fire code that applies at the site, not from the fixture wattage. Confirm the required duration and minimum [illuminance](https://www.xingguanglightingcn.com/en/glossary#illuminance) first, then size the battery — reverse the order and you buy a fixture that has emergency output but does not meet the requirement.

## 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 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)[Ambient temperature rating](https://www.xingguanglightingcn.com/en/glossary#ta-rating)[Lumen maintenance](https://www.xingguanglightingcn.com/en/glossary#l70)

![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?

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