WHY INDIRECT LIGHTING?
In spaces where reducing glare, enhancing comfort, or improving light uniformity are top priorities, indirect lighting is an ideal choice. Recent advancements in optical efficiency and LED performance have facilitated the development of smaller, more powerful, indirect lighting fixtures that control light better than ever before. This is enabling a new generation of buildings to enjoy the benefits of indirect lighting while meeting energy code requirements.
WHAT IS LIGHTRUSS?
SPI Lighting revolutionized how to indirectly light spaces when it introduced Lightruss three decades ago. Today, it remains one of the best ways to illuminate open spaces. Lightruss combines a suspended modular truss support system and performance lighting modules to deliver illumination for a wide variety of applications. Integrated state-of-the-art LED technology has modernized product offerings, which now feature efficacy up to 130 lumens per watt and max output of 110,000 lumens per fixture.
| |
LED |
Conventional |
| Lightruss LED Gen 2 |
Lightruss Rail |
Lightruss Fluorescent |
Lightruss HID |
| Light Engine |
LED |
LED |
Fluorescent |
Metal Halide |
| Optics |
True Asymmetric with Full Horizontal Cut-off |
Symmetric with Forward Tilt |
|
|
| Vertical Profile |
4" |
2.5" |
19 - 30" |
17" |
| Delivered Lumens |
54,904 - 109,809lm |
6,370 - 245,480lm |
30,000lm |
24,000 - 55,055lm |
| Footcandle Design Targets* |
30 -150 fc |
30 -100 fc |
50 - 100 fc |
30 - 100 fc |
| Efficacy |
up to 127 lm/W delivered |
up to 130 lm/W delivered |
up to 70 lm/W delivered |
up to 55 lm/W delivered |
| Ceiling Height |
20 - 70 feet |
12 - 35 feet |
16 - 40 feet |
20 - 70 feet |
| Pre-wired |
Yes |
No |
No |
Yes |
| Male/Female Connectors |
Yes |
No |
No |
Yes |
| Hinged Housings |
Yes |
Yes |
No |
No |
| Truss Design |
Two Rails
4 wireways |
Single Rail
2 wireways |
Single Rail |
Three Rails |
| Removable Fixture Heads |
Yes |
Yes |
No |
No |
| Fixture Options |
2-, 3-, or 4-LED banks indirect |
1-, 2-, or 4-module indirect
1-module direct |
6-lamp direct
4-lamp indirect/2-lamp direct |
1- or 2-lamp direct |
| Damp Rated |
Yes |
Yes |
Yes |
Yes |
| Encapsulated Wireways |
Yes |
Yes |
Yes |
Yes |
| 10% Dimming |
Consult Factory |
Yes |
No |
No |
| Instant On |
Yes |
Yes |
Yes |
No |
| Rated Lifespan |
L90 = 72,000 hours |
L70 = 50,000 hours |
36,000 hours |
10,000 hours |
| Max Ambient |
45°C(113°F) |
34°C(93°F) |
|
|
| Can incorporate A/V and other accessories |
Yes |
No |
Yes |
Yes |
| Can Turn Corners |
Yes |
Yes |
Yes |
Yes |
| Can Change Elevations |
Yes |
Yes |
No |
Yes |
| Distribution |
Predominantly indirect with supplemental direct available |
Predominantly indirect with supplemental direct available |
Direct |
Predominantly indirect with supplemental FL direct |
| Ideal Applications |
Natatoriums
(mid to large size pools) |
Natatoriums
(small to mid size pools) |
Natatoriums |
Natatoriums
(mid to large size pools) |
*Specifics depend on details of individual layout.
WHAT ARE THE BENEFITS?
The system’s streamlined design fully encapsulates wireways and eliminates vertical stems, presenting the clean visual package sought after by today’s architects. It can be designed to blend with ceiling construction or to add a visual accent.
Lightruss saves building owners 25 to 30 percent on installation costs by reducing the number of power drops and conduit requirements. Beyond that, the truss framework enables the ideal positioning of luminaires regardless of ceiling impediments such as supports, HVAC, and other systems, making it popular choice with engineers.
It is a favorite for lighting natatoriums. Because Lightruss minimizes glare on waters’ surface, it improves the visibility of lifeguards and enjoyment of spectators. Designed to light from the perimeter, it eliminates fixtures over pools. Lighting modules are easily maintained without disassembling the entire system. It’s damp-rated, durably constructed, and proven to last in harsh environments.
IS IT HARD TO SPECIFY?
Not at all! To ensure each system is tailored to your job requirements, our experienced applications team provides complimentary engineering support on all Lightruss products – from initial inquiry to final installation. Here’s how it works:
 |
 |
 |
| Start |
Design |
Installation |
| An experienced Lightruss application engineer will interface with you and your design team to obtain the illumination and space parameters needed to begin the system design. We will provide application photographs, budget parameters, and references from similar projects, if applicable. |
A complete set of documentation will be provided for inclusion in your bid. The documentation will vary based on the system but could include all or any of the following: overall layouts, circuiting diagrams, and construction details. Our local representatives, in partnership with our Lightruss team, provide final project pricing and can walk contractors through the installation process to ensure they are comfortable with how the system is supplied and installed. |
Lightruss LED is pre-wired, each light module is aimed, and every section is pre-assembled at the factory. Each section is also individually packaged for shipment and ease of handling. Each package and component is keyed to the installation drawings so all components are easily identified at the job site. Lightruss Rail is a simple to use system that is easily field wired and can be configured, installed, or adjusted in the field. The system is sent out as common components for easy identification and installation. |
Contact our applications team at SPIteam@spilighting.com to find out which Lightruss system is right for you.