Photometric Report
BLHJ-4'-48L-850-L82.ies
Luminaire lumens
47,974 lm
Calculated from the candela data
Efficacy
149 lm/W
At 322.1 W input
Peak intensity
21,867 cd
At 5° vertical, 180° horizontal
Luminaire efficiency
88%
Of 54,498 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.
Loading chart…
3D Candela Distribution
Intensity in every direction. Distance from the centre is candela. Drag to rotate.
Loading 3D view…
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.
Loading iso diagram…
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 | 603.6 fc | 14.3 ft | 10.4 ft |
| 8.0 ft | 339.5 fc | 19.0 ft | 13.9 ft |
| 10.0 ft | 217.3 fc | 23.8 ft | 17.4 ft |
| 12.0 ft | 150.9 fc | 28.6 ft | 20.9 ft |
| 14.0 ft | 110.9 fc | 33.3 ft | 24.3 ft |
| 16.0 ft | 84.9 fc | 38.1 ft | 27.8 ft |
| 24.0 ft | 37.7 fc | 57.1 ft | 41.7 ft |
| 32.0 ft | 21.2 fc | 76.2 ft | 55.6 ft |
| 40.0 ft | 13.6 fc | 95.2 ft | 69.5 ft |
| 48.0 ft | 9.4 fc | 114.3 ft | 83.4 ft |
| 56.0 ft | 6.9 fc | 133.3 ft | 97.3 ft |
| 64.0 ft | 5.3 fc | 152.4 ft | 111.2 ft |
File Details
- File
- BLHJ-4'-48L-850-L82.ies
- Format
- LM-63-2002
- Photometric type
- Type C
- Horizontal symmetry
- Symmetric 0-180°
- Angles
- 19 vertical × 9 horizontal
- Light sources
- 672 × 81.1 lm
- Luminous opening (W × L × H)
- 0.955489 × 3.90351 × 0.179375 ft
- Input watts
- 322.1 W
- Ballast factor
- 1
- Candela multiplier
- 1
- Ballast-lamp factor
- 1
- Test lab
- LTI Optics - www.ltioptics.com/ies
- Test date
- Mon Jul 22 14:37:01 2024
- Test number
- 1
- Manufacturer
- BJ TAKE LIGHTING
- Luminaire
- BLHJ-4'-48L-850-L82
- Lamp
- LED 0.4275W J SERIES 2835 HIGH EFFICACY COOL WHITE (150MA)
- Lamp catalogue number
- JE2835AWT-00-0000-0C0A0BH850E