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MODULAR HOT Series

MODULAR HOT Series

SKU MDH

Luminaire Type

Overview

The Modular Hot Series is purpose-engineered for the most demanding high-temperature environments, producing 30,000 to 120,000 lumens—equivalent to 400-2000W HID/MH fixtures—while cutting energy and maintenance costs by up to 80%. Seven precision light distribution options adapt it to die casting, metalworks, ironmaking, steel production, and chemical facilities, while IP67 waterproof and dustproof protection, 3G vibration resistance, and IK08/IK10 impact ratings ensure durability. Achieving up to 150 lm/W and rated for over 110,000 hours at 158°F, it's backed by Red Sky Lighting's standard 5-year warranty for safety and sustainable performance.

Classifications, Ratings, Certifications

  • DLC Standard (See Notes) (Certification)
  • FCC Part 15, Subpart B (Certification)
  • UL 1598 (Certification)
  • 3G Vibration (Rating)
  • IK08 (Glass) (Rating)
  • IK10 (PC) (Rating)
  • IP66 (Rating)
  • IP67 (Rating)
  • Salt Spray 720 hrs (ASTM B117) (Rating)

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INFO

High-Output LED for 158°F Extreme-Heat Industrial Environments

Die casting, ironmaking, and steel production generate ambient heat that ends the life of ordinary fixtures fast — the Modular Hot Series is engineered specifically to keep running at 158°F.

The Modular Hot Series (MDH) is purpose-engineered to deliver powerful, dependable illumination in the most demanding high-temperature environments. Designed with up to four LED modules, the MDH produces 30,000 to 120,000 lumens — the equivalent of 400-2000W HID/MH fixtures — while reducing energy and maintenance costs by up to 80%.

With seven precision light distribution options, the MDH adapts to die casting, metalworks, ironmaking, steel production, power generation, and chemical facilities, withstanding extreme conditions with IP67 waterproof and dustproof protection, 3G vibration resistance, and IK08/IK10 impact ratings.

Key Features

  • Unmatched Longevity: L70 >110,000 hours at high temperatures ensures years of dependable, maintenance-free performance.
  • Rugged & Reliable Safety: Marine-grade aluminum and 316 stainless steel, rated IP66/IP67, IK08/IK10.
  • Extreme Temperature Performance: Rated for continuous operation up to 158°F (70°C).
  • High Output, Low Cost: 30,000 to 120,000 lumens, replacing 400-2000W HID/MH, with up to 80% energy and maintenance savings.

Why Specify the Modular Hot Series

  • Rated for continuous 158°F ambient — among the highest temperature ratings available
  • Up to 80% energy and maintenance cost reduction versus legacy HID/MH
  • Seven light distribution options adapt one platform to many layouts
  • 5-year standard warranty
Specs
Electrical Parameters
L70 110,000 hrs@158°F
Warranty 5 Years
Power Factor ≥0.90
Supply Wire 12-18AWG, Rated 90°C
Surge Protection 10KV
THD <20%
Voltage/Frequency 120-277V AC / 347-480V AC, 50/60Hz
Dimming 0-10V, Range 0-100%
Power (W) 200 | 400 | 600 | 800
Rated Input Current @277V AC (A) 0.803 | 1.605 | 2.407 | 3.209
Rated Input Current @347V AC (A) 0.641 | 1.281 | 1.922 | 2.562
Rated Input Current @480V AC (A) 0.463 | 0.926 | 1.389 | 1.852
Rated Input Current @120V AC (A) 1.852 | 3.704 | 5.556 | 7.408
Optical Parameters
Correlated Color Temperature (CCT) 5000K
Color Rendering Index (CRI) 80 CRI
Available Beam Angle 15° / 30° / 60° / 90° / 30°×120° / T3 (Polycarbonate) / 120° (Glass)
Lumen Output (Lm)* 29993 | 58653 | 93290 | 120634
Lumen Efficacy (Lm/W)* 150
Mechanical Parameters
Hardware 316 Stainless Steel
Lens Material Tempered Glass or Polycarbonate
Mounting Options Yoke
Product Weight** 21 lbs / 9.5 kg | 38.8 lbs / 17.6 kg | 62.2 lbs / 28.2 kg | 80.6 lbs / 36.6 kg
Housing Material Marine Grade Aluminium
Package Weight** 23.1 lbs / 10.5 kg | 40.9 lbs / 18.6 kg | 64.3 lbs / 29.2 kg | 82.7 lbs / 37.6 kg
Product Dimensions (L×W×H)** 16.5×10.6×10.9 in (420×270×277 mm) | 19.5×16.5×10.9 in (495×420×277 mm) | 29.1×16.5×10.9 in (740×420×277 mm) | 38×16.5×10.9 in (964×420×277 mm)
Package Dimensions (L×W×H)** 21.8×15×8.9 in (554×380×226 mm) | 23.8×21.8×8.9 in (605×554×226 mm) | 33.8×22.8×9.1 in (858×578×231 mm) | 42.7×22.8×9.1 in (1085×578×231 mm)
Connection 5ft Power Cord | 3ft Power Cord
Environmental Parameters
EPA Wind Rating (FT2/m2) 1.164/0.136 | 2.685/0.250 | 4.015/0.373 | 5.231/0.486
Maximum Ambient Temperature Glass: 158°F (70°C), PC: 149°F (65°C)
Installation MIN 90°C SUPPLY CONDUCTORS

* 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.
** Data statistics are based on the Yoke installation method.

Compliance
Certifications
CSA C22.2 No. 250.0
DLC Standard (See Notes)
FCC Part 15, Subpart B
UL 1598
UL 1598 Wet Locations
Ratings
3G Vibration
IK08 (Glass)
IK10 (PC)
IP66
IP67
Salt Spray 720 hrs (ASTM B117)

* Not all product variations are DLC qualified. Visit www.designlights.org/search to confirm qualification.

Downloads
Spec Sheets
Document Type Description Updated Download
Specification MODULAR HOT Series – Full Specification Sheet 7/21/2026
IES
Document Type Description Updated Download
IES MODULAR HOT Series – IES Photometric Data Files 7/21/2026
Technical Documents (Installation Manuals)
Document Type Description Updated Download
Installation Manual MODULAR HOT Series – Installation Manual 7/21/2026
Certificates
Document Type Description Updated Download
Certificates MODULAR HOT Series – UL1598 Non 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

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