GDH440GDH440
48" Wide, Regressed Lens Grid-Mounted Luminaire
The GDH440 is a high-performance, 48″ wide grid-mounted luminaire designed for T-bar ceilings and demanding environments. Featuring a durable 22-gauge cold-rolled steel housing and a 2” deep regressed extruded aluminum door frame, it delivers robust construction with sleek aesthetics. The standard 0-10V dimming driver ensures flexible illumination control, and compatibility with California Title 24 makes it ideal for energy-conscious projects. The GDH440 offers a range of customizable options—lumen packages, color temperatures (including tunable white), sensor integration, and emergency battery packs. UL listed for the USA and Canada, it’s suitable for damp locations and backed by up to a 10-year warranty.
The GDH440 is a high-performance, 48″ wide grid-mounted luminaire designed for T-bar ceilings and demanding environments. Featuring a durable 22-gauge cold-rolled steel housing and a 2” deep regressed extruded aluminum door frame, it delivers robust construction with sleek aesthetics. The standard 0-10V dimming driver ensures flexible illumination control, and compatibility with California Title 24 makes it ideal for energy-conscious projects. The GDH440 offers a range of customizable options—lumen packages, color temperatures (including tunable white), sensor integration, and emergency battery packs. UL listed for the USA and Canada, it’s suitable for damp locations and backed by up to a 10-year warranty.
Construction
- 22 gauge cold-rolled steel housing
- 2″ deep regressed extruded aluminum door frame, secured by T-hinge and spring-loaded latches
- One-way polyurethane gasket
- Two gussets installed in each corner for maximum strength and true miter alignment
Optical
- One-piece clear prismatic acrylic lens
- Other lens options may require center mullion
Finish
- Pre-painted housing
- Baked white polyester finish
- Minimum reflectance 86%
- Door frame painted after fabrication (powder coat finish)
- High-efficiency drivers paired with long-life LEDs
- Service life >50,000 hours (L70)
- Universal voltage 120V ~ 277V (347V/480V available)
- Power Factor (PF) ≥ 0.9
- Total Harmonic Distortion (THD) ≤ 20%
Features
- Grid-mounted luminaire for T-bar ceilings
- 0-10V dimming driver standard
- Supports California Title 24 compliance
- Suitable for damp locations
Options
- Sensors and controls
- Range of lumen packages and color temperatures
- Various lenses
- 20 gauge housing
- Painted after fabrication
- Tamper-proof screws
- Tunable white (2700K – 6500K)
- Emergency battery pack
- Customization available upon request
Listing
- UL USA and Canada Listed
- Suitable for damp locations
Warranty
- 5-year limited warranty
- 10-year limited warranty available
Resources
Construction
- 22 gauge cold-rolled steel housing
- 2″ deep regressed extruded aluminum door frame, secured by T-hinge and spring-loaded latches
- One-way polyurethane gasket
- Two gussets installed in each corner for maximum strength and true miter alignment
Optical
- One-piece clear prismatic acrylic lens
- Other lens options may require center mullion
Finish
- Pre-painted housing
- Baked white polyester finish
- Minimum reflectance 86%
- Door frame painted after fabrication (powder coat finish)
- High-efficiency drivers paired with long-life LEDs
- Service life >50,000 hours (L70)
- Universal voltage 120V ~ 277V (347V/480V available)
- Power Factor (PF) ≥ 0.9
- Total Harmonic Distortion (THD) ≤ 20%
Features
- Grid-mounted luminaire for T-bar ceilings
- 0-10V dimming driver standard
- Supports California Title 24 compliance
- Suitable for damp locations
Options
- Sensors and controls
- Range of lumen packages and color temperatures
- Various lenses
- 20 gauge housing
- Painted after fabrication
- Tamper-proof screws
- Tunable white (2700K – 6500K)
- Emergency battery pack
- Customization available upon request
Listing
- UL USA and Canada Listed
- Suitable for damp locations
Warranty
- 5-year limited warranty
- 10-year limited warranty available
Availability
- Quick Ship
Lamp Source
- Fluorescent
- LED
- LED Tube
Lumens
- 1000
- 64000
Dimming Protocol
- 0-10 V
- D4i
- DALI
- DMX
- Forward Phase
- Lutron
- Step-Dimming
- Two Wire
Ratings & Compliance
- Build America Buy America (BABA)
- Buy American Act (BAA)
- Damp
- Made in America
- Title 24
CRI
- 80
- 90
Color / Finish
- Anti-Microbial
- Black
- Bronze
- Camaro Silver
- Custom
- Painted After Fabrication
- Red
- White
Controls Options
- High Frequency Microwave
- Passive Infrared
- Photocell
- Ultrasonic
- Wireless Control
Dimensions
- L: 48 In. W: 48 In. H: 6 In.
CCT
- Amber
- 2700K
- 3000K
- 3500K
- 4000K
- 5000K
- 6500K
Dimming Range
- 1%
- 10%
- 5%
Distribution
- Direct
Dynamic LED Color
- RGBW
- Tunable White
Efficacy
- 128.5
- 131.0
- 133.5
- 136.3
- 136.4
- 137.6
- 139.3
- 139.4
- 141.0
- 142.8
- 143.3
Emergency Options
- Battery Pack
- External Line Fuse
- Generator Transfer Device
- Inverter
- Surge Protector
Lamp Life
- 50000
Listings
- UL
Materials
- Acrylic
- Steel
Mounting
- Lay-In Ceiling
- Recessed
- T-Grid
Size
- 4x4
Static LED Color
- Blue
- Green
- Red
Voltage
- 120 V
- 120-277 V
- 120-347 V
- 347 V
- 480 V
- UNV
Warranty
- 5 yr
- 10 yr
Watts
- 24.9
- 46.6
- 47.2
- 69.2
- 72.8
- 94.3
- 99.1
- 120.0
- 126.0
- 143.2
- 153.4
