FW
FORWARD THROW
Asymmetric
Clear
Measured, STI-30-757-FW
Hazardous Area · Floodlight
Explosion Proof Low Bay & Pendant Light
Order code STI-30-757-FW-V4-UB-OR-I1
2,910 lm
CRI>70, 5700K. FORWARD THROW optic. OR Orange (RAL2011) - C5 rated.
No lumen is published for that combination.
Measured file STI-30-757-FW: 3,004 lm at 29.8 W (100.8 lm/W).
30W nominal. 236 × 220 × 303 mm, 5 kg. CE, RoHS.
The Stirling Series ATEX light offers 30W, 45W, and 60W models with four mounting options, including a portable floor stand, to suit diverse industrial lighting needs. It is Zone 1 certified, covering Zone 1 and Zone 2 applications.
It features high impact (IK10), ingress (IP66), and corrosion resistance (C5), using tempered glass and an aluminium alloy housing that withstands up to 20J of force.
Task-specific optics ranging from 15° to 200° ensure customisable light distribution.
Efficient thermal design improves heat dissipation and extends the product’s lifespan.
| Series code | STI |
|---|---|
| Nominal power | 30W to 60W |
| Efficacy | 90lm/W to 97lm/W @ CRI>70, 5700K CCT |
| Lumen output | 2,910lm to 5,820lm |
| Lumen maintenance | L80B10 ≥42,000 hours @ 25°C ambient (TM21 reported), ≥70,000 hours (TM21 calculated) |
| Certification | CE, RoHS |
| Warranty | 5 Years |
Sheet lumen at CRI>70, 5700K, with no modification: 30 2,910 lm, 45 4,050 lm, 60 5,820 lm. Another CRI, or a modification, still prints the order code and leaves the lumen blank. 3 measured files give 92.2 to 100.8 lm/W; the measured figure for the chosen optic shows under the code.
Questions for Adam list what the sheet and the measured files do not settle yet.
FORWARD THROW
Asymmetric
Clear
Measured, STI-30-757-FW
Polar: solid green C0–C180, dashed blue C90–C270, dotted amber the plane through the brightest direction when it lies between them; rings at 25% steps of the peak. Isolux: the footprint on the floor with the fitting aimed straight down, contours at 50%, 25% and 10% of the brightest point, grid in mounting heights (H). Both are drawn from the first measured file for that optic.
The Stirling Series is available in 30W, 45W, & 60W power classes. High ingress and corrosion resistance, alongside three general purpose & task-specific optics provides flexibility for most applications. Four mounting styles, including a self supported floor stand - see Stirling Portable - can meet industrial task-lighting requirements. Impact Resistance - Risk of early failure is significantly lowered through the use of a shock and vibration-resistant tempered glass lens and industrial aluminium alloy housing. Which can withstand up to 20J of force. Optics - The Stirling series offers 4 task specific symmetric optics from 15° to 200°, which provides flexibility for lighting your area of work. Thermal Performance - Through design placing the LED chips next to the enclosure allows effective heat dissipation. Which in turn lowers the junction temperatures giving a longer lifespan to the product. Mounting Options - The Stirling series provides varied array of mounting options; Universal Bracket, Eye Bolt, Surface Mount, In-Line Pipe


These lights provide sufficient coverage for vehicle loading and unloading of Hazardous Substances while providing resistance against hazardous conditions.

Lighting for Distilleries must find a balance between style and function; lights must offer optimum performance in vapour-filled environments.

Lighting for grain processing and storage rooms must work in the presence of flammable dust, meeting regulations for hazardous areas and food production.

Oil rig lights need to perform in harsh environments where safety is paramount. We offer a variety of LED ATEX explosion-proof lighting for oil rigs.

For oil refinery lighting and for the petro-chemical sector, Kellwood Lighting offer a range of marine grade LED ATEX / IECEx approved lighting products.

Lux levels and hazardous area Zone 1 and Zone 2 lighting for tank farms. We have the product range and experience of lighting design needed for tank farms.
Showing 1-4 of 5
| Chip Brand, Model, & Size | Osram Oslon SSL 3030 |
|---|---|
| Chip Efficacy @ CRI>70, 5700K CCT | 130lm/W @ 600mA |
| Light Emission | Direct |
| CCT | 5700K, (3000K, 4000K optional) |
| CRI | ≥70 |
| Diffusers | Clear |
| Asymmetric Light Distribution | FW (110°x120°) |
| System Operating Power | STI-30: 30W; STI-45: 45W; STI-60: 60W |
|---|---|
| Input Voltage | 100-277VAC, (24-48VAC, 10-30VAC optional) |
| Input Frequency | 50-60Hz |
| Inrush Current @ 100-277VAC | 30A |
| Power Factor | >0.98 |
| THD | <10% (100VAC-277VAC) |
| Insulation Class | I (100-277VAC), III (24-48VAC, 10-30VAC) |
| Surge Protection/Fusing | 6kV |
| IP Rating | IP66 |
|---|---|
| IK Rating | IK10 housing / IK08 front face, or IK10 / IK10 with the wire guard |
| Ambient Usage Tolerance | -40°C to 55°C |
| Marine Resistance Rating | C5 |
| Ambient Storage Tolerance | -40°C to 55°C |
| Ambient Humidity Tolerance | 0% to 90% RH |
| Product Dimensions: LxWxH (mm) | 236 x 220 x 303 |
|---|---|
| Qty of LED Chips | STI-30: 20; STI-45: 24; STI-60: 30 |
| Electrical Connection | Terminal block 1mm² to 4mm² |
| Inlet Thread | M25 (M25x1.5), NPT3/4” |
| Gland Type | Brass with Nickel Plated Non-Armoured (Armoured optional) |
| Suitable Cable Size (ø) | M25 = 9.5-15.9mm, NPT3/4” = 12.5-20.5mm |
| Fixture Weight | 5kg (excludes bracketry) |
| Fixture Primary Material(s) | ADC12 Aluminium Alloy (1.5-3.5% Copper) and 316 Stainless Steel Fixings |
| Fixture Finish | Epoxy Powder Coated |
| Lens(es) Materials | Tempered Glass |
| Protection Method | Flame proof |
| Mounting Styles | Universal Bracket, Eye Bolt, Surface Mount Bracket, In-Line Pipe Connector |
|---|---|
| Miscellaneous Accessories | Wire Grill |
| Available Product Colours | Orange (RAL2011), Grey (RAL7040) |
| Division | ATEX Zone 1 & 21 and 2 & 22 |
|---|---|
| Product marking | II 2 G D, Ex db IIC T* Gb, Ex tb IIIC T* Db |
| Temperature class, -40° to 40°C (Ta) | 30W and 45W: gas T6, dust T80°C; 60W: gas T5, dust T95°C |
| Temperature class, -40° to 55°C (Ta) | 30W and 45W: gas T5, dust T95°C; 60W: gas T4, dust T130°C |
| Certificate numbers | ATEX: EPT 18 ATEX 2977 X issue 2; IECEx: IECEx CQM 15.0039X |
| 30 | 30W nominal. 236 × 220 × 303 mm, 5 kg. CE, RoHS. |
|---|---|
| 45 | 45W nominal. 236 × 220 × 303 mm, 5 kg. CE, RoHS. |
| 60 | 60W nominal. 236 × 220 × 303 mm, 5 kg. CE, RoHS. |
Details are for the standard non-dimming driver. Fixture weight excludes bracketry.
IK rating format is housing / front face; IK10 front face when fitted with the wire guard.
Wire-in-wire-out products are supplied with one non-armoured ATEX certified gland and one ATEX certified blanking plug. Armoured cable glands are an option; contact Kellwood.
The stated cable size applies to the standard gland; armoured cable may vary.
Hazardous area certified product modifications are typically limited to bracketry, to keep certification. Products are supplied with OEM nameplates, codes and documentation corresponding to the certification.
If more than one modification is required, separate each modification with a hyphen at the end of the product code.
Modifications which affect light output have separate photometric files identified with +(modification).
Alternative drivers may be available. Contact the office for further details.
If the product is customised, the code is altered.
Contact the office for further information on driver parameters.
The Best Place to Install LED Drivers in Outdoor Sports Lighting ProjectsSports Lighting · Michael Boyom · 28th April, 2026
Should You Choose an ISO9001 Lighting Supplier?Business News · Adam Maitland · 18th April, 2026
Red-White LED Lighting for FETF 300 GrantsIndustrial Lighting · Adam Maitland · 24th March, 2026Our lights are used by
I am delighted to have used Kellwood...
P. Nisbet, Wabtec Corporationa project that was well planned and promptly accomplished
E. McHugh, LoganairWhere others let us down, Kellwood did not
W. Coley, Barking Abbey School...my client is over the moon with the end results
A. Fraser, MacLean ElectricalI'd certainly recommend them
V. Richardson, Stolle EuropeI'm more than pleased with the guys. I'd recommend them to anyone
G. Gray, Logoplaste