Echo Expanse
Echo Expanse
Echo Expanse
Echo Expanse
EIW12329 37 in
Echo Expanse - Wall (Stem)
Echo Expanse is an advanced high output asymmetric lighting tool that lights large spaces more comfortably with indirect light. Designed with the latest in LED technology, it packages high lumen density with exceptional efficacy in a clean, compact form. State-of-the-art asymmetric optics direct light deep into the center of the room. Easily scaled for any project, Echo Expanse is available in a massive range of outputs - from 14,000 to 168,000 lumens. For a complimentary lighting layout, contact our applications team at
Echo Expanse - Wall (Stem) EIW12329

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  • High quality indirect light increases visual comfort, eliminates source brightness, and improves uniformity
  • True asymmetric optics with a deep forward throw
  • Glare-free with full horizontal cut-off
  • Can tilt +/-8.5° and still maintain full horizontal cut-off; locks into position
  • Super-high 125 lm/W standard efficacy
  • Lights from the perimeter, keeping ceilings clean and clutter-free
  • Delivers a smooth, consistent beam pattern of even white light suitable for highly-finished ceilings and walls
  • Specially designed to operate in high ambient temperature environments
  • Innovative pin-fin aluminum heat sink keeps LEDs cool, lengthening the lifetime
  • Natatorium option adds additional protection in corrosive environments
  • LED modules and power supplies are integrated into a quick-change light engine
  • Handcrafted in USA


  • LIGHT SOURCE: White LED light engine with gasketed and sealed LEDs
  • CRI: 80+ or 90+
  • ORIENTATION: Indirect (contact factory for direct applications)
  • LUMEN MAINTENANCE: L90 = >72,000 Hrs at 40°C ambient temperature
  • EFFICACY: Up to 125 lm/W delivered
  • CCT: 3000K, 3500K, or 4000K
  • VOLTAGE: 120-277V standard
  • DRIVER: Integral Class 2 power supply
  • DIMMING: 1% minimum dim level standard
  • CONTROLS: 0-10V standard. Lutron Athena and nLight AIR optional. Contact factory for other controls (e.g., Current NX, Enlighted, Encelium, Wattstopper, WaveLinx, or Casambi).
  • INTEGRATED SURGE PROTECTION: LED components are protected against minor surge events
  • CONSTRUCTION: Aluminum construction; precision injection molded optics
  • FINISH: Housing and mounting components finished to match, except the heat sink which is always painted Satin Aluminum (PT50). Choose from 26 standard thermoset polyester powder coat paint colors. RAL®, Pantone®, or custom finishes available upon request.  
  • MODIFICATIONS: Consult factory for all modification requests, including wire guard options
  • APPROVALS: ETL listed to UL standards (US & Canada) for use in damp locations; not recommended for exterior applications


17 in
43.2 cm
24 in
61 cm
37.2 in
94.5 cm
Mounting Weight
Approximate: 40 lb (19 kg)
Your Configuration:
--None --

Required Field *

Please Note: Default specifications "DF_XXX" will not appear in the ordering code.


Job Name:


To ensure color consistency, SPI uses precise bin selection and strict quality processes to maintain a 3-step (MacAdam) SDCM on all white LED lampings. Published LED luminaire wattages are calculated using a typical power supply efficiency of 88%; exact wattages may vary based on application. Alternative wattages available upon request.

L649W | White 649W LED Light Engine

Delivered Lumens: 81,060

Voltage *

120-277V | Universal Voltage  

Lamp Options *

Apply multiplier from chart for delivered lumens at other CCT’s and CRI’s.

2700K | 2700K CCT  
3000K | 3000K CCT  
3500K | 3500K CCT  
4000K | 4000K CCT  
5000K | 5000K CCT  


DF_80 | (default)  
90 1  

1 Not available in 5000K

Controls *

Extended lead times may apply for controls other than 0-10V. Contact factory for additional control options such as Current NX, Enlighted, Encelium, Wattstopper, WaveLinx, Casambi, or others.

DF_DIM1 | 0-10V Control, 1% Dimming (default)  
AWNR 2 | Lutron Athena Wireless Node, 1% Dimming  
NLTA 2 | Acuity nLight Air, 1% Dimming  

2 Not recommended for natatorium environments without additional component protection. Contact factory for options.

Mounting *

Mounts over standard 4” octagonal junction box with auxiliary mounting holes. When HZT2 is specified, power is on the left stem when facing the front of the fixture.

HZT1 | Horizontal stem with (1) 4.25” x 44.8” canopy  
HZT2 | Horizontal stem with (2) 5.5” canopies  



EMR | Emergency Battery Remote  


When the NAT option is selected, you can feel confident that the luminaire specified is designed with high-quality materials that will withstand the corrosive environment of indoor pools. Electrical components are protected from moisture and the fixture has been tested to operate in warm ambient temperatures.

NAT | Natatorium Construction  
F | Fusing  

Other Than Standard Options

Specify overall projection required from the wall to the end of the fixture. For OAPs greater than 24", contact factory.

OAP | Projection length other than standard  
Enter length:   Select a light source

Request a modification

Echo Expanse - Natatorium Concept
Visualization: Mike Caine, SPI Lighting

Echo Expanse - Natatorium Concept
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Echo Expanse - Natatorium Concept
Visualization: Mike Caine, SPI Lighting

Echo Expanse - Natatorium Concept
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Echo Expanse - Cafeteria Concept
Visualization: Mike Caine, SPI Lighting

Echo Expanse - Cafeteria Concept
image 3 of 5

Echo Expanse - Greensboro Aquatic Center
Electrical Designer: SKA Consulting Engineers

Echo Expanse - Greensboro Aquatic Center
image 4 of 5

Echo Expanse - Greensboro Aquatic Center
Electrical Designer: SKA Consulting Engineers

Echo Expanse - Greensboro Aquatic Center
image 5 of 5