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Explosion Proof LED Flood Lights: Selection, Specs and Real Project Data

Date： 2026-09-26

By SEEKINGLED Engineering Team · September 2026 · 8 min read

Flood lights carry the bulk of hazardous-area illumination — perimeters, tank farms, drilling pads, loading terminals. This is how to size them, zone them and verify them, with numbers from a live export project.

On this page

Zone 1 vs Zone 2 models
Wattage and beam planning
Spec comparison
Project case: Philippines
Installation notes
FAQ

Two Models, Two Zones

Flood lighting splits along the zone boundary:

Range	Protection	Zones	Power	Best use
FL7 (flameproof)	Ex db IIB T6 Gb	1 / 21	60–400 W	Release-source zones: process units, wellheads, loading arms
FL8 (non-sparking)	Ex nR IIC T6/T5 Gc	2 / 22	50–300 W	General hazardous site: tank farm shells, roads, laydown

FL8's IIC gas group and T6 rating (at ≤150 W; T5 at full load) give it the widest gas compatibility in the Zone 2 fleet — a simplification for EPC buyers who don't want per-area model juggling.

Full specifications: FL8 Series explosion proof flood light (Zone 2/22, 50–300 W) · FL7 explosion proof flood light (Zone 1/21, 60–400 W).

One site typically runs both flameproof and non-sparking flood ranges

Sizing: Lux Targets by Application

Area	Maintained lux	Mounting height	Typical fixture
Process unit walkways	50 lux	8–12 m	FL8 100–150 W
Tank farm perimeter	20–30 lux	15–25 m poles	FL8 200–300 W
Drilling/workover pad	100–150 lux	12–18 m tower	FL7 200–400 W
Loading bay / jetty	50–100 lux	8–15 m	FL7 150–300 W
Gate & security zones	30–50 lux	6–10 m wall/pole	FL8 100 W

Beam angle selection follows throw distance: narrow (25–40°) for high-mast long throw, wide (60–120°) for building-mounted area wash. Request IES files and a DIALux layout — suppliers who can't produce photometric files are reselling, not manufacturing.

Spec-Level Comparison

Parameter	FL8 Series	FL7 Series
Certification	ATEX TÜV CY 26 ATEX 0207611 X	Flameproof certified range
Marking	Ex nR IIC T6/T5 Gc	Ex db IIB T6 Gb
Zones	2 / 22	1 / 21
Power range	50–300 W	60–400 W
IP rating	IP67	IP67
Gas group	IIC (hydrogen-capable)	IIB
Weight class	Lighter — faster install	Flamepath housing — heavier

Project Case: Power Plant, Philippines

FL8 explosion proof flood lights were supplied for a Philippine power plant project — covering fuel-handling and perimeter zones:

Zone 2 classification across fuel transfer areas → Ex nR Gc fleet standardised on FL8
Perimeter and process-area illumination from mixed pole heights, verified by layout calculation before shipment
Single-supplier sourcing including linear lights and emergency fittings from the same certificate portfolio

Export project references are the fastest credibility signal in Ex procurement

Installation Notes That Prevent Inspection Failures

Use certified cable glands matched to the entry thread and clamping range — an uncertified gland voids the Ex rating
Respect the "X" special conditions on the certificate (torque values, orientation limits)
Confirm driver voltage window covers site supply plus tolerance (100–277 VAC is the safe export spec)
Keep luminaire spacing from layout documents — field "eyeballing" ruins uniformity ratios

Get a layout: send site plan with zones and pole positions to sales02@seekingled.com — DIALux layout and FOB quotation returned within 24 hours.

Frequently Asked Questions

What is an explosion proof flood light?

An explosion proof flood light is a high-power, wide-beam luminaire certified for hazardous areas — Ex db (flameproof) for Zone 1 or Ex nR (non-sparking) for Zone 2. It provides area illumination for tank farms, drilling sites, loading bays and plant perimeters where flammable atmospheres may occur.

What wattage explosion proof flood light do I need?

For mounting heights of 8–15 m, 100–200 W LED units at 100–150 W coverage per 500 m² of process area is typical; 300 W units serve high masts above 20 m or long-throw distances. Always confirm with a photometric calculation rather than rules of thumb.

Can I use a Zone 2 flood light in Zone 1?

No. Zone 2 (Gc) equipment like Ex nR flood lights is not certified for Zone 1. Zone 1 requires Category 2 equipment — Ex db or Ex eb marked Gb. Using Gc gear in Zone 1 is a compliance failure that will be caught in hazardous area inspection.

What is the difference between FL7 and FL8 flood lights?

FL7 is the flameproof (Ex db) Zone 1/21 range at 60–400 W for primary hazardous areas; FL8 is the Ex nR Zone 2/22 range at 50–300 W (ATEX TÜV CY 26 ATEX 0207611 X) for the far larger Zone 2 footprint. Projects typically use both: FL7 close to release sources, FL8 across the general site.

How long do LED explosion proof flood lights last?

Quality certified LED flood lights are rated 100,000 hours to L70 — over 11 years of continuous operation. In hazardous areas this is the key economic argument: every avoided relamp is an avoided hot-work permit and shutdown window.

Get a Quote for Your Project

Send us your hazardous area classification (zone, gas group, temperature class) and target lux levels — our engineers will reply with a full lighting layout and FOB Shenzhen quotation within 24 hours.

Email: sales02@seekingled.com | Exporting to 70+ countries · 1,000,000+ units shipped per year

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