Photometric Report
BLLBT-4FT-6.5L-840-L67.ies
Luminaire lumens
6,425 lm
Calculated from the candela data
Efficacy
135 lm/W
At 47.7 W input
Peak intensity
2,346 cd
At 0° vertical, 0° horizontal
Luminaire efficiency
91%
Of 7,084 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 | 65.2 fc | 16.3 ft | 13.9 ft |
| 8.0 ft | 36.7 fc | 21.7 ft | 18.5 ft |
| 10.0 ft | 23.5 fc | 27.2 ft | 23.1 ft |
| 12.0 ft | 16.3 fc | 32.6 ft | 27.7 ft |
| 14.0 ft | 12.0 fc | 38.0 ft | 32.4 ft |
| 16.0 ft | 9.2 fc | 43.5 ft | 37.0 ft |
| 24.0 ft | 4.1 fc | 65.2 ft | 55.5 ft |
| 32.0 ft | 2.3 fc | 87.0 ft | 74.0 ft |
| 40.0 ft | 1.5 fc | 108.7 ft | 92.4 ft |
| 48.0 ft | 1.0 fc | 130.4 ft | 110.9 ft |
| 56.0 ft | 0.7 fc | 152.2 ft | 129.4 ft |
| 64.0 ft | 0.6 fc | 173.9 ft | 147.9 ft |
File Details
- File
- BLLBT-4FT-6.5L-840-L67.ies
- Format
- LM-63-2002
- Photometric type
- Type C
- Horizontal symmetry
- Symmetric in each quadrant
- Angles
- 19 vertical × 5 horizontal
- Light sources
- 112 × 63.2 lm
- Luminous opening (W × L × H)
- 0.384826 × 4.24902 × 0.28 ft
- Input watts
- 47.7 W
- Ballast factor
- 1
- Candela multiplier
- 1
- Ballast-lamp factor
- 1
- Test lab
- LTI Optics - www.ltioptics.com/ies
- Test date
- Wed May 24 15:01:10 2023
- Test number
- 1
- Manufacturer
- BJ TAKE LIGHTING
- Luminaire
- BLLBT-4FT-6.5L-840-L67
- Lamp
- LED 0.17875W 2835 MID POWER (65MA)
- Lamp catalogue number
- SPMWH1228MD5WATUVK