2015 Greenwire Star™ Award
Most Efficient Room Lighting Design for Open Plan Office
using LED ULB T-bar 1200×300 @ 2.7m AFL
A wide variety of the most popular LED 1200×300 ULB T-bar troffers available within the Australian lighting Industry were independently reviewed by our lighting design team at Green Wire Consulting. All T-bar Troffers were tested in an open office scenario with multiple grid spacings simulated using lighting level calculations performed by DIALux 4.12.
- Only luminaires with verified NATA certified photometrics
were considered as part of this award. - Only lighting designs achieving UGR<19 Glare in compliance with
AS1680 were reviewed.
The most energy efficient room lighting design solution for this category has been given the 2015 Greenwire Star™ Open Plan Office Award as follows:
Award Details:
| Award name: | MOST EFFICIENT – LED 1200 x 300 ULB Troffer |
| Class: | Open Plan Office – 2.7m AFL |
| Award year: | 2015 |
| Award ref no: | C1AA |
| Awarded by: | Green Wire Consulting – Energy Efficiency Engineers |
| Award date: | 30 Sept 2015 |
| Ceiling type: | Exposed T-bar 1.2×0.6 grid |
AWARD CRITERIA:
Lighting Design Parameters:
| Ceiling height: | 2.7 m |
| Mounting height: | 2.7 m |
| Reflectances: | C70 W50 F20 |
| Light Loss Factor: | 0.8 |
| Wall perimeter exclusion zone: | 1 m |
| Ceiling type: | T-bar tiled grid |
| Lighting software: | DIALux 4.12 |
| No: lights in open-plan office: | 64 |
AS1680 Lighting Design Requirements:
| Room Uniformity: | 0.5 or greater |
| Glare Index: | UGR 19 or less |
| Luminaire Photometrics by: | NATA Certified laboratory |
Lighting design conditions & software simulation parameters reviewed by James Graham from:
ROOM DESIGN PERFORMANCE SUMMARY for the Multifive LED:
| Room Greenwire Star™ Rating |
Lighting Supplier | NATA Certified IES file |
Luminaire Model & Catalogue no: | Image | Light Power |
Light Output |
Grid Spacings | Watts /m2 | Watts /m2/ 100lux | Avg. maint lux | Uni-formity | AS1680 UGR Glare compliant | Polar Curve Diagram | Lighting Design | DIALux Calc PDF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4.5 Stars |
 |
 |
Multifive LED – EL-MLD-1107-0 |  |
24.9 W | 102.7 lm/W | 2.4m x 2.7m (4 tiles) |
3.84 | 1.17 | 328 lux | 0.87 | 14 |
 |
VIEW Details |  |
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Lighting Suppliers !
Contact us if you’d like to register your latest energy efficient 1200×300 troffer luminaire to compete for next year’s award.
What is a Greenwire Star Award?
CLICK here to learn more about our Greenwire Star ratings & awards.