Photometric Report
BLSPT-4FT-5.5L-840-L18.ies
Luminaire lumens
5,682 lm
Calculated from the candela data
Efficacy
143 lm/W
At 39.6 W input
Peak intensity
1,733 cd
At 10° vertical, 90° horizontal
Luminaire efficiency
88%
Of 6,421 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 | 47.7 fc | 17.5 ft | 23.7 ft |
| 8.0 ft | 26.8 fc | 23.3 ft | 31.5 ft |
| 10.0 ft | 17.2 fc | 29.1 ft | 39.4 ft |
| 12.0 ft | 11.9 fc | 34.9 ft | 47.3 ft |
| 14.0 ft | 8.8 fc | 40.8 ft | 55.2 ft |
| 16.0 ft | 6.7 fc | 46.6 ft | 63.1 ft |
| 24.0 ft | 3.0 fc | 69.9 ft | 94.6 ft |
| 32.0 ft | 1.7 fc | 93.2 ft | 126.2 ft |
| 40.0 ft | 1.1 fc | 116.5 ft | 157.7 ft |
| 48.0 ft | 0.7 fc | 139.8 ft | 189.3 ft |
| 56.0 ft | 0.5 fc | 163.1 ft | 220.8 ft |
| 64.0 ft | 0.4 fc | 186.4 ft | 252.4 ft |
File Details
- File
- BLSPT-4FT-5.5L-840-L18.ies
- Format
- LM-63-2002
- Photometric type
- Type C
- Horizontal symmetry
- Symmetric in each quadrant
- Angles
- 19 vertical × 5 horizontal
- Light sources
- 112 × 57.3 lm
- Luminous opening (W × L × H)
- 0.274999 × 4.20899 × 0.218291 ft
- Input watts
- 39.6 W
- Ballast factor
- 1
- Candela multiplier
- 1
- Ballast-lamp factor
- 1
- Test lab
- LTI Optics - www.ltioptics.com/ies
- Test date
- Mon May 8 13:05:26 2023
- Test number
- 1
- Manufacturer
- BJ TAKE LIGHTING
- Luminaire
- BLSPT-4FT-5.5L-840-L18
- Lamp
- LED 0.1885W MID POWER 3030 (65MA)
- Lamp catalogue number
- LM301B