Photometric Report
BLLBT-8FT-11L-840-L67.ies
Luminaire lumens
10,698 lm
Calculated from the candela data
Efficacy
134 lm/W
At 79.6 W input
Peak intensity
3,764 cd
At 5° vertical, 22.5° horizontal
Luminaire efficiency
92%
Of 11,676 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 | 104.2 fc | 17.7 ft | 14.2 ft |
| 8.0 ft | 58.6 fc | 23.6 ft | 18.9 ft |
| 10.0 ft | 37.5 fc | 29.5 ft | 23.6 ft |
| 12.0 ft | 26.1 fc | 35.3 ft | 28.4 ft |
| 14.0 ft | 19.1 fc | 41.2 ft | 33.1 ft |
| 16.0 ft | 14.7 fc | 47.1 ft | 37.8 ft |
| 24.0 ft | 6.5 fc | 70.7 ft | 56.8 ft |
| 32.0 ft | 3.7 fc | 94.3 ft | 75.7 ft |
| 40.0 ft | 2.3 fc | 117.8 ft | 94.6 ft |
| 48.0 ft | 1.6 fc | 141.4 ft | 113.5 ft |
| 56.0 ft | 1.2 fc | 165.0 ft | 132.4 ft |
| 64.0 ft | 0.9 fc | 188.5 ft | 151.3 ft |
File Details
- File
- BLLBT-8FT-11L-840-L67.ies
- Format
- LM-63-2002
- Photometric type
- Type C
- Horizontal symmetry
- Symmetric in each quadrant
- Angles
- 19 vertical × 5 horizontal
- Light sources
- 224 × 52.1 lm
- Luminous opening (W × L × H)
- 0.384826 × 8.24902 × 0.280816 ft
- Input watts
- 79.6 W
- Ballast factor
- 1
- Candela multiplier
- 1
- Ballast-lamp factor
- 1
- Test lab
- LTI Optics - www.ltioptics.com/ies
- Test date
- Thu May 25 08:58:12 2023
- Test number
- 1
- Manufacturer
- BJ TAKE LIGHTING
- Luminaire
- BLLBT-8FT-11L-840-L67
- Lamp
- LED 0.17875W 2835 MID POWER (65MA)
- Lamp catalogue number
- SPMWH1228MD5WATUVK