Photometric Data Sheet
| Luminaire | Albion - Ceiling Surface Lights, 120 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 430 lm | Input power | 6.0 W |
| Efficacy | 71.7 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B0-U0-G0 |
| Beam angle (50% Imax) | 120.0° | Field angle (10% Imax) | 171.0° |
| Voltage | AC220~240V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 131.8 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 0 mm dia. | Spacing/height (nominal) | 11.34 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 108 | 25.2% |
| 0–60° | 330 | 76.9% |
| 0–90° (total) | 430 | 100.0% |
Flux emitted within each downward cone. 77% of the total falls inside the rated beam angle.
| Zone | Back lm | Front lm |
|---|---|---|
| Low 0–30° | 54 | 54 |
| Mid 30–60° | 111 | 111 |
| High 60–80° | 42 | 42 |
| Very high 80–90° | 7 | 7 |
| 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° | 131.8 | 46° | 99.5 |
| 1° | 131.8 | 47° | 97.4 |
| 2° | 131.8 | 48° | 95.2 |
| 3° | 131.8 | 49° | 93.0 |
| 4° | 131.8 | 50° | 90.8 |
| 5° | 131.8 | 51° | 88.4 |
| 6° | 131.8 | 52° | 86.1 |
| 7° | 131.7 | 53° | 83.6 |
| 8° | 131.7 | 54° | 81.2 |
| 9° | 131.6 | 55° | 78.7 |
| 10° | 131.6 | 56° | 76.2 |
| 11° | 131.5 | 57° | 73.6 |
| 12° | 131.4 | 58° | 71.1 |
| 13° | 131.3 | 59° | 68.5 |
| 14° | 131.1 | 60° | 65.9 |
| 15° | 131.0 | 61° | 63.3 |
| 16° | 130.8 | 62° | 60.7 |
| 17° | 130.5 | 63° | 58.2 |
| 18° | 130.3 | 64° | 55.6 |
| 19° | 130.0 | 65° | 53.1 |
| 20° | 129.6 | 66° | 50.6 |
| 21° | 129.2 | 67° | 48.1 |
| 22° | 128.8 | 68° | 45.7 |
| 23° | 128.3 | 69° | 43.3 |
| 24° | 127.8 | 70° | 40.9 |
| 25° | 127.2 | 71° | 38.6 |
| 26° | 126.6 | 72° | 36.4 |
| 27° | 125.9 | 73° | 34.2 |
| 28° | 125.1 | 74° | 32.1 |
| 29° | 124.3 | 75° | 30.1 |
| 30° | 123.4 | 76° | 28.1 |
| 31° | 122.4 | 77° | 26.2 |
| 32° | 121.4 | 78° | 24.4 |
| 33° | 120.3 | 79° | 22.6 |
| 34° | 119.2 | 80° | 20.9 |
| 35° | 117.9 | 81° | 19.3 |
| 36° | 116.6 | 82° | 17.8 |
| 37° | 115.2 | 83° | 16.4 |
| 38° | 113.8 | 84° | 15.1 |
| 39° | 112.3 | 85° | 13.8 |
| 40° | 110.7 | 86° | 12.6 |
| 41° | 109.0 | 87° | 11.5 |
| 42° | 107.2 | 88° | 10.4 |
| 43° | 105.4 | 89° | 9.4 |
| 44° | 103.5 | 90° | 0.0 |
| 45° | 101.5 |
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 | 33 | 30 | 23 | 15 | 9 | 6.9 m |
| 2.5 m | 21 | 20 | 17 | 12 | 9 | 8.7 m |
| 3.0 m | 15 | 14 | 12 | 10 | 8 | 10.4 m |
| 3.5 m | 11 | 10 | 9 | 8 | 7 | 12.1 m |
| 4.0 m | 8 | 8 | 7 | 7 | 6 | 13.9 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.