Photometric Data Sheet
| Luminaire | Cuby - Wall Surface, 36 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 450 lm | Input power | 6.0 W |
| Efficacy | 75.0 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B1-U0-G0 |
| Beam angle (50% Imax) | 36.0° | Field angle (10% Imax) | 59.4° |
| Voltage | AC220~277V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 1,157.8 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 102 mm dia. | Spacing/height (nominal) | 1.14 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 420 | 93.4% |
| 0–60° | 450 | 100.0% |
| 0–90° (total) | 450 | 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° | 210 | 210 |
| Mid 30–60° | 15 | 15 |
| 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° | 1,157.8 | 46° | 1.6 |
| 1° | 1,157.0 | 47° | 1.1 |
| 2° | 1,153.7 | 48° | 0.8 |
| 3° | 1,147.0 | 49° | 0.5 |
| 4° | 1,136.3 | 50° | 0.4 |
| 5° | 1,121.3 | 51° | 0.3 |
| 6° | 1,101.8 | 52° | 0.2 |
| 7° | 1,077.5 | 53° | 0.0 |
| 8° | 1,048.7 | 54° | 0.0 |
| 9° | 1,015.3 | 55° | 0.0 |
| 10° | 977.7 | 56° | 0.0 |
| 11° | 936.1 | 57° | 0.0 |
| 12° | 891.0 | 58° | 0.0 |
| 13° | 842.9 | 59° | 0.0 |
| 14° | 792.4 | 60° | 0.0 |
| 15° | 740.1 | 61° | 0.0 |
| 16° | 686.6 | 62° | 0.0 |
| 17° | 632.7 | 63° | 0.0 |
| 18° | 578.9 | 64° | 0.0 |
| 19° | 525.9 | 65° | 0.0 |
| 20° | 474.2 | 66° | 0.0 |
| 21° | 424.5 | 67° | 0.0 |
| 22° | 377.0 | 68° | 0.0 |
| 23° | 332.3 | 69° | 0.0 |
| 24° | 290.5 | 70° | 0.0 |
| 25° | 252.0 | 71° | 0.0 |
| 26° | 216.8 | 72° | 0.0 |
| 27° | 185.0 | 73° | 0.0 |
| 28° | 156.5 | 74° | 0.0 |
| 29° | 131.2 | 75° | 0.0 |
| 30° | 109.1 | 76° | 0.0 |
| 31° | 89.9 | 77° | 0.0 |
| 32° | 73.5 | 78° | 0.0 |
| 33° | 59.5 | 79° | 0.0 |
| 34° | 47.7 | 80° | 0.0 |
| 35° | 37.9 | 81° | 0.0 |
| 36° | 29.8 | 82° | 0.0 |
| 37° | 23.3 | 83° | 0.0 |
| 38° | 18.0 | 84° | 0.0 |
| 39° | 13.7 | 85° | 0.0 |
| 40° | 10.4 | 86° | 0.0 |
| 41° | 7.8 | 87° | 0.0 |
| 42° | 5.8 | 88° | 0.0 |
| 43° | 4.3 | 89° | 0.0 |
| 44° | 3.1 | 90° | 0.0 |
| 45° | 2.2 |
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 | 289 | 180 | 36 | 3 | 0 | 1.3 m |
| 2.5 m | 185 | 139 | 49 | 9 | 1 | 1.6 m |
| 3.0 m | 129 | 106 | 53 | 16 | 3 | 1.9 m |
| 3.5 m | 95 | 83 | 50 | 21 | 6 | 2.3 m |
| 4.0 m | 72 | 66 | 45 | 23 | 9 | 2.6 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.