Photometric Data Sheet
| Luminaire | Star II - Wall Surface, 90 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 2,880 lm | Input power | 24.0 W |
| Efficacy | 120.0 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B2-U0-G1 |
| Beam angle (50% Imax) | 90.0° | Field angle (10% Imax) | 130.2° |
| Voltage | AC220~240V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 1,421.0 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 0 mm dia. | Spacing/height (nominal) | 4.30 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 1,121 | 38.9% |
| 0–60° | 2,656 | 92.2% |
| 0–90° (total) | 2,880 | 100.0% |
Flux emitted within each downward cone. 72% of the total falls inside the rated beam angle.
| Zone | Back lm | Front lm |
|---|---|---|
| Low 0–30° | 561 | 561 |
| Mid 30–60° | 767 | 767 |
| High 60–80° | 100 | 100 |
| Very high 80–90° | 12 | 12 |
| 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° | 1,421.0 | 46° | 674.0 |
| 1° | 1,421.0 | 47° | 637.6 |
| 2° | 1,421.0 | 48° | 601.5 |
| 3° | 1,420.9 | 49° | 565.8 |
| 4° | 1,420.6 | 50° | 530.8 |
| 5° | 1,420.3 | 51° | 496.5 |
| 6° | 1,419.7 | 52° | 463.0 |
| 7° | 1,418.9 | 53° | 430.5 |
| 8° | 1,417.7 | 54° | 399.1 |
| 9° | 1,416.2 | 55° | 368.9 |
| 10° | 1,414.3 | 56° | 339.9 |
| 11° | 1,411.9 | 57° | 312.3 |
| 12° | 1,409.0 | 58° | 286.0 |
| 13° | 1,405.4 | 59° | 261.2 |
| 14° | 1,401.1 | 60° | 237.9 |
| 15° | 1,396.1 | 61° | 216.0 |
| 16° | 1,390.2 | 62° | 195.6 |
| 17° | 1,383.5 | 63° | 176.8 |
| 18° | 1,375.8 | 64° | 159.3 |
| 19° | 1,367.1 | 65° | 143.3 |
| 20° | 1,357.3 | 66° | 128.6 |
| 21° | 1,346.4 | 67° | 115.3 |
| 22° | 1,334.2 | 68° | 103.3 |
| 23° | 1,320.8 | 69° | 92.4 |
| 24° | 1,306.2 | 70° | 82.7 |
| 25° | 1,290.2 | 71° | 74.0 |
| 26° | 1,272.8 | 72° | 66.3 |
| 27° | 1,254.1 | 73° | 59.4 |
| 28° | 1,233.9 | 74° | 53.4 |
| 29° | 1,212.4 | 75° | 48.2 |
| 30° | 1,189.4 | 76° | 43.6 |
| 31° | 1,165.1 | 77° | 39.6 |
| 32° | 1,139.4 | 78° | 36.1 |
| 33° | 1,112.3 | 79° | 33.1 |
| 34° | 1,084.0 | 80° | 30.5 |
| 35° | 1,054.4 | 81° | 28.2 |
| 36° | 1,023.6 | 82° | 26.3 |
| 37° | 991.8 | 83° | 24.6 |
| 38° | 958.9 | 84° | 23.2 |
| 39° | 925.2 | 85° | 21.9 |
| 40° | 890.7 | 86° | 20.8 |
| 41° | 855.4 | 87° | 19.8 |
| 42° | 819.7 | 88° | 19.0 |
| 43° | 783.5 | 89° | 18.2 |
| 44° | 747.1 | 90° | 0.0 |
| 45° | 710.5 |
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 | 355 | 320 | 226 | 127 | 63 | 4.0 m |
| 2.5 m | 227 | 213 | 171 | 118 | 71 | 5.0 m |
| 3.0 m | 158 | 151 | 130 | 100 | 70 | 6.0 m |
| 3.5 m | 116 | 112 | 101 | 84 | 64 | 7.0 m |
| 4.0 m | 89 | 87 | 80 | 69 | 56 | 8.0 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.