ROUND Series
Overview
The compact yet robust Round Series lights up even the tightest spaces, measuring only 9 inches while delivering 150 lm/W from high-efficiency LEDs. Approved for hazardous locations, it withstands searing heat up to 140°F with a lifetime exceeding 127,000 hours, and operates reliably as low as -40°F. Its 0-10V dimmability reduces light pollution and energy costs, while six lens options and seven mounting configurations provide flexible placement. Pre-installed cords simplify installation, and Red Sky Lighting's best-in-class 10-year warranty backs it for oil and gas, marine, and factory environments.
Classifications, Ratings, Certifications
INFO
Compact 9-Inch LED for Hazardous Low Bay & Area Lighting
Tight mounting spaces in hazardous facilities don't have to mean compromised output — the Round Series packs 150 lm/W into a fixture measuring just 9 inches.
The compact yet robust Round Series lights up even the tightest spaces. Measuring only 9 inches, it delivers a powerful 150 lumens per watt from high-efficiency LEDs. Approved for hazardous locations, the Round Series accommodates demanding conditions in industries like oil and gas, marine, factories, and more.
Built to last, it withstands searing heat up to 140°F with a lifetime of over 127,000 hours at that temperature, and operates reliably as low as -40°F. Its 0-10V dimmability reduces light pollution and slashes energy costs, with six lens options and seven mounting configurations for flexible placement.
Key Features
- Flexible Installation: 7 different mounting options.
- Various Lens Options: 6 different lens options including polycarbonate diffuse drop lens
- Compact and Light Weight Design: 9-inch form factor.
- Quick Installation: 60 seconds installation time.
Why Specify the Round Series
- 9-inch compact form factor fits tight, confined installations
- 127,000-hour L70 life at 140°F ambient
- 60-second installation reduces labor cost on new builds and retrofits
- 10-year warranty
Specs
| Electrical Parameters | |
|---|---|
| L70 | 127,000 hrs@140°F |
| Warranty | LEDs: 10 years, Driver: 7 years |
| Power Factor | ≥0.90 |
| Supply Wire | 12-18AWG, Rated 90°C |
| Surge Protection | 10KV |
| THD | <20% |
| Dimming | 0-10V, Range 10-100% |
| Power (W) | 35W | 40W | 45W | 55W | 60W | 65W |
| Rated Input Current @277V AC (A) | 35W (0.14) | 45W (0.18) | 55W (0.22) | 65W (0.26) |
| Rated Input Current @347V AC (A) | 40W (0.128) | 60W (0.192) |
| Rated Input Current @480V AC (A) | 40W (0.092) | 60W (0.138) |
| Rated Input Current @120V AC (A) | 35W (0.324) | 45W (0.416) | 55W (0.509) | 65W (0.601) |
| Frequency | 50/60Hz |
| Voltage (V AC) | 120-277 | 347-480 |
| Optical Parameters | |
|---|---|
| Correlated Color Temperature (CCT) | 3000K / 4000K / 5000K / Amber |
| Color Rendering Index (CRI) | 80 CRI |
| Available Beam Angle | 60° / 120° / T1 / T3 |
| Lumen Output (Lm)* | 5048 | 5617 | 6532 | 7982 | 8901 | 9591 |
| Lumen Efficacy (Lm/W)* | 150 |
| Mechanical Parameters | |
|---|---|
| Hardware | 316 Stainless Steel |
| Lens Material | Tempered Glass / Polycarbonate |
| Mounting Options | Pendant, Ceiling, Yoke, Wall, Stanchion, Pole, Pipe, Junction Box |
| Product Weight | 11.0 lbs / 5.0 kg |
| Housing Material | Die-cast aluminum |
| Package Weight | 13.1 lbs / 6.0 kg |
| Cable Entry | (5) 3/4" NPT |
| Product Dimensions (L×W×H) | 10.6×10.3×7.85 in (269.4×262×199.3 mm) |
| Package Dimensions (L×W×H) | 12.7×11.6×8.7 in (323×295×220 mm) |
| Environmental Parameters | |
|---|---|
| Ambient Operating Temperature | -40°F ~ +140°F (-40°C ~ 60°C) |
| EPA Wind Rating (FT2) | 0.929 (Yoke), 1.032 (Ceiling), 0.917 (Stanchion) |
| T-Code Rating | C1D2 – T4A, C2D1 – T5 |
* Value calculated based on 5000K, 80 CRI and clear glass; varies by different spec. 70 CRI & 90 CRI optional, DLC available with 70 CRI only.
Compliance
| Classifications |
|---|
| Class I Division 2, Groups A, B, C, D |
| Class I Zone 2, Group IIC |
| Class II Division 1 Group E, F, G |
| Class II Division 2, Groups F, G |
| Class III |
| Zone 21, Group IIIC |
| Certifications |
|---|
| CSA C22.2 No. 137 |
| CSA C22.2 No. 250.0 |
| DLC Premium (See Notes) |
| FCC Part 15, Subpart B |
| UL 1598 |
| UL 1598 Wet Locations |
| UL 1598A |
| UL 1598A Marine Outside Type (Salt Water) |
| UL 844 |
| Ratings |
|---|
| IK08 (Glass) |
| IK10 (PC) |
| IP66 |
| NEMA 4X |
| Salt Spray 720 hrs (ASTM B117) |
* Not all product variations are DLC qualified. Visit www.designlights.org/search to confirm qualification.
** Yoke Mount Only
Downloads
Spec Sheets
| Document Type | Description | Updated | Download |
|---|---|---|---|
| Specification | ROUND Series – Full Specification Sheet | 7/21/2026 |
IES
| Document Type | Description | Updated | Download |
|---|---|---|---|
| IES | ROUND Series – IES Photometric Data Files | 7/21/2026 |
Certificates
| Document Type | Description | Updated | Download |
|---|---|---|---|
| Certificates | ROUND Series – UL1598 Non Hazardous Certificate of Compliance | 7/21/2026 | |
| Certificates | ROUND Series – UL1598A Marine Certificate of Compliance | 7/21/2026 | |
| Certificates | ROUND Series – UL844 Hazardous Certificate of Compliance | 7/21/2026 |
Marketing Materials
| Document Type | Description | Updated | Download |
|---|---|---|---|
| Brochure | Brochure - ATEX, IECEx, UKEX Certified Products | 7/21/2026 | |
| Brochure | Brochure - Built for Harsh Environments | 7/21/2026 | |
| Brochure | Brochure - Hazloc - UL Certified Products | 7/21/2026 | |
| Brochure | Brochure - Quick Selection Guide | 7/21/2026 | |
| Brand Kit | Red Sky Lighting Brand Guidelines and Logos | 7/21/2026 |