Photometric Data Sheet
| Luminaire | LEGGERA - Wall Surface, 45 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 1,200 lm | Input power | 10.0 W |
| Efficacy | 120.0 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B1-U0-G0 |
| Beam angle (50% Imax) | 45.0° | Field angle (10% Imax) | 74.2° |
| Voltage | AC220~240V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 1,995.6 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 350 mm dia. | Spacing/height (nominal) | 1.51 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 976 | 81.3% |
| 0–60° | 1,200 | 100.0% |
| 0–90° (total) | 1,200 | 100.0% |
Flux emitted within each downward cone. 59% of the total falls inside the rated beam angle.
| Zone | Back lm | Front lm |
|---|---|---|
| Low 0–30° | 488 | 488 |
| Mid 30–60° | 112 | 112 |
| High 60–80° | 0 | 0 |
| Very high 80–90° | 0 | 0 |
| 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° | 1,995.6 | 46° | 42.2 |
| 1° | 1,994.8 | 47° | 34.4 |
| 2° | 1,991.4 | 48° | 27.9 |
| 3° | 1,984.6 | 49° | 22.4 |
| 4° | 1,973.8 | 50° | 18.0 |
| 5° | 1,958.5 | 51° | 14.3 |
| 6° | 1,938.4 | 52° | 11.3 |
| 7° | 1,913.4 | 53° | 8.9 |
| 8° | 1,883.2 | 54° | 6.9 |
| 9° | 1,847.9 | 55° | 5.3 |
| 10° | 1,807.5 | 56° | 4.1 |
| 11° | 1,762.1 | 57° | 3.1 |
| 12° | 1,711.9 | 58° | 2.4 |
| 13° | 1,657.2 | 59° | 1.8 |
| 14° | 1,598.3 | 60° | 1.4 |
| 15° | 1,535.7 | 61° | 1.0 |
| 16° | 1,469.8 | 62° | 0.7 |
| 17° | 1,401.0 | 63° | 0.5 |
| 18° | 1,330.0 | 64° | 0.4 |
| 19° | 1,257.3 | 65° | 0.3 |
| 20° | 1,183.5 | 66° | 0.2 |
| 21° | 1,109.1 | 67° | 0.0 |
| 22° | 1,034.8 | 68° | 0.0 |
| 23° | 961.0 | 69° | 0.0 |
| 24° | 888.4 | 70° | 0.0 |
| 25° | 817.4 | 71° | 0.0 |
| 26° | 748.5 | 72° | 0.0 |
| 27° | 682.0 | 73° | 0.0 |
| 28° | 618.4 | 74° | 0.0 |
| 29° | 557.9 | 75° | 0.0 |
| 30° | 500.8 | 76° | 0.0 |
| 31° | 447.2 | 77° | 0.0 |
| 32° | 397.2 | 78° | 0.0 |
| 33° | 351.0 | 79° | 0.0 |
| 34° | 308.5 | 80° | 0.0 |
| 35° | 269.7 | 81° | 0.0 |
| 36° | 234.4 | 82° | 0.0 |
| 37° | 202.7 | 83° | 0.0 |
| 38° | 174.3 | 84° | 0.0 |
| 39° | 149.0 | 85° | 0.0 |
| 40° | 126.6 | 86° | 0.0 |
| 41° | 107.0 | 87° | 0.0 |
| 42° | 89.9 | 88° | 0.0 |
| 43° | 75.1 | 89° | 0.0 |
| 44° | 62.3 | 90° | 0.0 |
| 45° | 51.4 |
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 | 499 | 364 | 127 | 26 | 5 | 1.7 m |
| 2.5 m | 319 | 263 | 134 | 45 | 12 | 2.1 m |
| 3.0 m | 222 | 195 | 123 | 57 | 21 | 2.5 m |
| 3.5 m | 163 | 149 | 107 | 60 | 28 | 2.9 m |
| 4.0 m | 125 | 117 | 91 | 59 | 32 | 3.3 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.