Photometric Report
BLLBT-8FT-23L-840-L67.ies
Luminaire lumens
21,325 lm
Calculated from the candela data
Efficacy
126 lm/W
At 169.4 W input
Peak intensity
7,763 cd
At 5° vertical, 0° horizontal
Luminaire efficiency
90%
Of 23,615 rated lamp lumens
Polar Candela Distribution
Each curve is a vertical slice through the luminaire: the listed plane on the right, the plane 180° opposite on the left. 0° is straight down.
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3D Candela Distribution
Intensity in every direction. Distance from the centre is candela. Drag to rotate.
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Iso Candela Diagram
Looking up at the luminaire. The centre is straight down and the outer ring is the horizon (90°). Horizontal angles run clockwise from 0° at the top.
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Cone of Light
Light level directly below the luminaire, and the beam width on the floor where intensity falls to 50% of peak. Two widths are listed when the luminaire's 0–180° and 90–270° beams differ.
| Mtg Height | Light Level | Beam Diameter (0°-180°) | Beam Diameter (90°-270°) |
|---|---|---|---|
| 6.0 ft | 211.7 fc | 17.0 ft | 13.3 ft |
| 8.0 ft | 119.1 fc | 22.6 ft | 17.8 ft |
| 10.0 ft | 76.2 fc | 28.3 ft | 22.2 ft |
| 12.0 ft | 52.9 fc | 33.9 ft | 26.7 ft |
| 14.0 ft | 38.9 fc | 39.6 ft | 31.1 ft |
| 16.0 ft | 29.8 fc | 45.2 ft | 35.6 ft |
| 24.0 ft | 13.2 fc | 67.8 ft | 53.3 ft |
| 32.0 ft | 7.4 fc | 90.4 ft | 71.1 ft |
| 40.0 ft | 4.8 fc | 113.1 ft | 88.9 ft |
| 48.0 ft | 3.3 fc | 135.7 ft | 106.7 ft |
| 56.0 ft | 2.4 fc | 158.3 ft | 124.5 ft |
| 64.0 ft | 1.9 fc | 180.9 ft | 142.2 ft |
File Details
- File
- BLLBT-8FT-23L-840-L67.ies
- Format
- LM-63-2002
- Photometric type
- Type C
- Horizontal symmetry
- Symmetric in each quadrant
- Angles
- 19 vertical × 5 horizontal
- Light sources
- 448 × 52.7 lm
- Luminous opening (W × L × H)
- 0.384826 × 8.24908 × 0.280816 ft
- Input watts
- 169.4 W
- Ballast factor
- 1
- Candela multiplier
- 1
- Ballast-lamp factor
- 1
- Test lab
- LTI Optics - www.ltioptics.com/ies
- Test date
- Thu May 25 09:54:39 2023
- Test number
- 1
- Manufacturer
- BJ TAKE LIGHTING
- Luminaire
- BLLBT-8FT-23L-840-L67
- Lamp
- LED 0.17875W 2835 MID POWER (65MA)
- Lamp catalogue number
- SPMWH1228MD5WATUVK