Photometric Data Sheet
| Luminaire | Canter Bury - Street Lights, 155 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 12,062 lm | Input power | 90.0 W |
| Efficacy | 134.0 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 | 2,683.7 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 530 mm dia. | Spacing/height (nominal) | 11.34 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 2,236 | 18.5% |
| 0–60° | 7,634 | 63.3% |
| 0–90° (total) | 12,062 | 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° | 1,118 | 1,118 |
| Mid 30–60° | 2,699 | 2,699 |
| High 60–80° | 1,670 | 1,670 |
| Very high 80–90° | 544 | 544 |
| 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° | 2,683.7 | 46° | 2,385.8 |
| 1° | 2,683.7 | 47° | 2,364.6 |
| 2° | 2,683.7 | 48° | 2,342.5 |
| 3° | 2,683.7 | 49° | 2,319.5 |
| 4° | 2,683.6 | 50° | 2,295.6 |
| 5° | 2,683.5 | 51° | 2,270.8 |
| 6° | 2,683.4 | 52° | 2,245.0 |
| 7° | 2,683.2 | 53° | 2,218.4 |
| 8° | 2,682.9 | 54° | 2,190.8 |
| 9° | 2,682.5 | 55° | 2,162.4 |
| 10° | 2,681.9 | 56° | 2,133.1 |
| 11° | 2,681.3 | 57° | 2,102.9 |
| 12° | 2,680.4 | 58° | 2,071.9 |
| 13° | 2,679.4 | 59° | 2,040.1 |
| 14° | 2,678.2 | 60° | 2,007.4 |
| 15° | 2,676.7 | 61° | 1,974.0 |
| 16° | 2,675.0 | 62° | 1,939.9 |
| 17° | 2,673.0 | 63° | 1,905.0 |
| 18° | 2,670.7 | 64° | 1,869.4 |
| 19° | 2,668.1 | 65° | 1,833.2 |
| 20° | 2,665.2 | 66° | 1,796.3 |
| 21° | 2,661.8 | 67° | 1,758.9 |
| 22° | 2,658.1 | 68° | 1,720.9 |
| 23° | 2,654.0 | 69° | 1,682.4 |
| 24° | 2,649.4 | 70° | 1,643.5 |
| 25° | 2,644.3 | 71° | 1,604.1 |
| 26° | 2,638.7 | 72° | 1,564.4 |
| 27° | 2,632.6 | 73° | 1,524.4 |
| 28° | 2,626.0 | 74° | 1,484.1 |
| 29° | 2,618.7 | 75° | 1,443.7 |
| 30° | 2,610.9 | 76° | 1,403.0 |
| 31° | 2,602.4 | 77° | 1,362.3 |
| 32° | 2,593.3 | 78° | 1,321.5 |
| 33° | 2,583.6 | 79° | 1,280.7 |
| 34° | 2,573.1 | 80° | 1,239.9 |
| 35° | 2,561.9 | 81° | 1,199.3 |
| 36° | 2,550.0 | 82° | 1,158.8 |
| 37° | 2,537.3 | 83° | 1,118.6 |
| 38° | 2,523.8 | 84° | 1,078.7 |
| 39° | 2,509.5 | 85° | 1,039.0 |
| 40° | 2,494.4 | 86° | 999.8 |
| 41° | 2,478.5 | 87° | 961.0 |
| 42° | 2,461.7 | 88° | 922.7 |
| 43° | 2,444.1 | 89° | 884.9 |
| 44° | 2,425.5 | 90° | 0.0 |
| 45° | 2,406.1 |
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 | 671 | 611 | 471 | 325 | 213 | 18.0 m |
| 2.5 m | 429 | 404 | 341 | 263 | 192 | 22.6 m |
| 3.0 m | 298 | 286 | 253 | 210 | 165 | 27.1 m |
| 3.5 m | 219 | 212 | 194 | 168 | 140 | 31.6 m |
| 4.0 m | 168 | 164 | 153 | 137 | 118 | 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.