Photometric Report
BLMB-8FT-22L-840-J31.ies
Luminaire lumens
21,816 lm
Calculated from the candela data
Efficacy
140 lm/W
At 155.6 W input
Peak intensity
8,529 cd
At 10° vertical, 90° horizontal
Luminaire efficiency
89%
Of 24,476 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 | 231.7 fc | 13.9 ft | 18.4 ft |
| 8.0 ft | 130.4 fc | 18.5 ft | 24.5 ft |
| 10.0 ft | 83.4 fc | 23.1 ft | 30.7 ft |
| 12.0 ft | 57.9 fc | 27.7 ft | 36.8 ft |
| 14.0 ft | 42.6 fc | 32.3 ft | 43.0 ft |
| 16.0 ft | 32.6 fc | 36.9 ft | 49.1 ft |
| 24.0 ft | 14.5 fc | 55.4 ft | 73.6 ft |
| 32.0 ft | 8.1 fc | 73.9 ft | 98.2 ft |
| 40.0 ft | 5.2 fc | 92.3 ft | 122.7 ft |
| 48.0 ft | 3.6 fc | 110.8 ft | 147.3 ft |
| 56.0 ft | 2.7 fc | 129.3 ft | 171.8 ft |
| 64.0 ft | 2.0 fc | 147.7 ft | 196.4 ft |
File Details
- File
- BLMB-8FT-22L-840-J31.ies
- Format
- LM-63-2002
- Photometric type
- Type C
- Horizontal symmetry
- Symmetric in each quadrant
- Angles
- 19 vertical × 5 horizontal
- Light sources
- 384 × 63.7 lm
- Luminous opening (W × L × H)
- 0.909751 × 8.07543 × 0.398415 ft
- Input watts
- 155.6 W
- Ballast factor
- 1
- Candela multiplier
- 1
- Ballast-lamp factor
- 1
- Test lab
- LTI Optics - www.ltioptics.com/ies
- Test date
- Tue Oct 31 14:25:12 2023
- Test number
- 1
- Manufacturer
- BJ TAKE LIGHTING
- Luminaire
- BLMB-8FT-22L-840-J31
- Lamp
- LED 0.17875W 2835 MID POWER (65MA)
- Lamp catalogue number
- SPMWH1228MD5WATUVK