HB21 Series Explosion Proof High Bay lights（images 1）

HB21 Series Explosion Proof High Bay lights（images 3）

LED explosion proof high bay lights

HB21 Series

The HB21 series LED explosion proof high bay lights are a reliable, high-performance solution engineered by SEEKINGLED specifically for hazardous area. Designed based on flame proof lights principles, they fully comply with IEC 60079-0 and IEC 60079-1 standards, making them ideal for Zone 1 and Zone 21 (gas) as well as Zone 2 and Zone 22 (dust) environments.
These lights are perfectly suited for hazardous area lighting in sectors such as petroleum, natural gas, chemical, military, marine lighting, airport lighting, and more. Available in multiple power options including 15W,25W,40W,60W,80W,100W,120W,150W 200W and 300W, their high-power design excels in applications with high ceilings or expansive coverage areas.
Boasting a luminous efficacy of up to 150 lm/W and an excellent color rendering index, they deliver true-to-life, natural colors—vastly superior to traditional halogen lamps. Key advantages include minimal heat output, rapid startup, an impressive lifespan of up to 100,000 hours, and reduced ongoing maintenance.
Certified with ATEX and IECEx by the CSA Group, these lights are approved for the ATEX EU region and IECEx member countries. Their pure flame proof design ensures reliable performance even in higher-risk hazardous areas.

Feature：

Flame proof type, More Safe and Reliable
3-speed power adjustable to reduce SKU
Comes with a built-in junction box
60° ,90° ,120° beam angles to meet various lighting needs
Up to 150LM/W@CRI80

ATEX：

II 2G Ex db ⅡC T6/T5 Gb
II 2D Ex tb ⅢC T80℃/T95℃Db

IECEx

Ex db ⅡC T6/T5 Gb
Ex tb ⅢC T80℃/T95℃Db

Gas: Zone 1 & Zone 2.
Dust: Zone 21 & Zone 22.
Allowable Temperature: -20°C – +55°C
Cable Entries: 2xM25x1.5

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Technical Specifications:

AC Input: 100-277V 50/60Hz
CRI Range: Ra>80
CCT Range: NW(4000K) CW(5700K)
Light Efficiency: 150±5% Lm/W
Protection grade: Ip66 & IK10
L80B20@25℃:>100000H
PF:≥0.95 THD<15% Power Efficiency:≥0.9

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HB21 Series Explosion Proof High Bay lights（images 5）

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FAQs – LED explosion proof high bay lights

What are HB21 Series LED explosion proof high bay lights used for?

They are used in hazardous areas where flammable gas or combustible dust may be present, such as oil & gas facilities, chemical plants, paint shops and industrial warehouses with classified zones.

Which hazardous zones are supported by these LED explosion proof high bay lights?

The HB21 Series is suitable for Gas Zone 1 and Zone 2, as well as Dust Zone 21 and Zone 22, according to ATEX and IECEx standards.

What certifications do these explosion proof high bay lights have?

They are certified with ATEX and IECEx by CSA Group, covering both gas and dust applications for EU and IECEx member countries.

How do I choose the right wattage for my hazardous area project?

Wattage selection depends on mounting height, beam angle and target lux level. Lower wattages are often enough for enclosed rooms, while 150W–300W models are used in high-ceiling processing halls or open industrial areas.

Are different beam angles available?

Yes. The HB21 Series supports 60°, 90° and 120° beam angles. This helps adjust light distribution without changing the fixture model.

Why is heat management important in explosion proof lighting?

In hazardous areas, surface temperature must stay within limits to avoid ignition. These LED explosion proof high bay lights are designed to control heat output and meet temperature class requirements.

Can these lights replace traditional halogen or HID explosion proof lamps?

Yes. In many retrofit projects, HB21 Series LED explosion proof high bay lights replace halogen or HID fixtures while reducing power consumption and maintenance frequency.

What is the operating temperature range?

The allowable ambient temperature range is from -20°C to +55°C, suitable for most indoor and semi-indoor hazardous environments.

Does the fixture include a junction box?

Yes. A built-in junction box is included, which simplifies wiring and reduces installation time on site.

What is the expected lifetime and warranty?

The design life is rated at L80B20 > 100,000 hours under standard conditions. SEEKING provides a 5-year warranty for the HB21 Series.