Photometric Data Sheet
| Luminaire | Winchester - Street Lights, 155 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 16,800 lm | Input power | 120.0 W |
| Efficacy | 140.0 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B3-U0-G4 |
| Beam angle (50% Imax) | 155.0° | Field angle (10% Imax) | 179.4° |
| Voltage | AC220~240V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 3,737.9 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 584 mm dia. | Spacing/height (nominal) | 11.34 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 3,115 | 18.5% |
| 0–60° | 10,633 | 63.3% |
| 0–90° (total) | 16,800 | 100.0% |
Flux emitted within each downward cone. 88% of the total falls inside the rated beam angle.
| Zone | Back lm | Front lm |
|---|---|---|
| Low 0–30° | 1,557 | 1,557 |
| Mid 30–60° | 3,759 | 3,759 |
| High 60–80° | 2,325 | 2,325 |
| Very high 80–90° | 758 | 758 |
| Uplight 90–100° / 100–180° | 0 / 0 | |
Backlight, Uplight and Glare classes from the zone lumens, IES TM-15-11 limits. Calculated from this distribution.
Centre-beam illuminance and beam diameter on a surface directly below.
| γ | cd | γ | cd |
|---|---|---|---|
| 0° | 3,737.9 | 46° | 3,323.0 |
| 1° | 3,737.9 | 47° | 3,293.5 |
| 2° | 3,737.9 | 48° | 3,262.7 |
| 3° | 3,737.8 | 49° | 3,230.6 |
| 4° | 3,737.8 | 50° | 3,197.3 |
| 5° | 3,737.6 | 51° | 3,162.7 |
| 6° | 3,737.4 | 52° | 3,126.9 |
| 7° | 3,737.2 | 53° | 3,089.7 |
| 8° | 3,736.7 | 54° | 3,051.4 |
| 9° | 3,736.2 | 55° | 3,011.8 |
| 10° | 3,735.4 | 56° | 2,971.0 |
| 11° | 3,734.5 | 57° | 2,928.9 |
| 12° | 3,733.3 | 58° | 2,885.7 |
| 13° | 3,731.9 | 59° | 2,841.4 |
| 14° | 3,730.2 | 60° | 2,796.0 |
| 15° | 3,728.2 | 61° | 2,749.4 |
| 16° | 3,725.8 | 62° | 2,701.8 |
| 17° | 3,723.0 | 63° | 2,653.2 |
| 18° | 3,719.8 | 64° | 2,603.7 |
| 19° | 3,716.2 | 65° | 2,553.2 |
| 20° | 3,712.1 | 66° | 2,501.9 |
| 21° | 3,707.4 | 67° | 2,449.8 |
| 22° | 3,702.2 | 68° | 2,396.9 |
| 23° | 3,696.5 | 69° | 2,343.3 |
| 24° | 3,690.0 | 70° | 2,289.1 |
| 25° | 3,683.0 | 71° | 2,234.3 |
| 26° | 3,675.2 | 72° | 2,179.0 |
| 27° | 3,666.7 | 73° | 2,123.2 |
| 28° | 3,657.4 | 74° | 2,067.1 |
| 29° | 3,647.4 | 75° | 2,010.7 |
| 30° | 3,636.5 | 76° | 1,954.1 |
| 31° | 3,624.7 | 77° | 1,897.4 |
| 32° | 3,612.0 | 78° | 1,840.5 |
| 33° | 3,598.4 | 79° | 1,783.7 |
| 34° | 3,583.8 | 80° | 1,727.0 |
| 35° | 3,568.2 | 81° | 1,670.4 |
| 36° | 3,551.6 | 82° | 1,614.0 |
| 37° | 3,533.9 | 83° | 1,558.0 |
| 38° | 3,515.1 | 84° | 1,502.4 |
| 39° | 3,495.2 | 85° | 1,447.2 |
| 40° | 3,474.2 | 86° | 1,392.5 |
| 41° | 3,452.0 | 87° | 1,338.5 |
| 42° | 3,428.7 | 88° | 1,285.1 |
| 43° | 3,404.1 | 89° | 1,232.5 |
| 44° | 3,378.3 | 90° | 0.0 |
| 45° | 3,351.3 |
Candela at each vertical angle, C0-C180 plane.
| Mounting height | centre | 0.5 m | 1.0 m | 1.5 m | 2.0 m | Beam Ø |
|---|---|---|---|---|---|---|
| 2.0 m | 934 | 851 | 657 | 453 | 296 | 18.0 m |
| 2.5 m | 598 | 563 | 474 | 366 | 267 | 22.6 m |
| 3.0 m | 415 | 398 | 353 | 292 | 230 | 27.1 m |
| 3.5 m | 305 | 296 | 270 | 234 | 194 | 31.6 m |
| 4.0 m | 234 | 228 | 213 | 190 | 164 | 36.1 m |
Horizontal illuminance directly below the fitting (centre) and at each radial offset, for a single fitting. Use it to judge spacing for uniform light. Point-source projection, E = I·cosθ / D².