Photometric Data Sheet
| Luminaire | Starry - Flood & Spike Lights, 40 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 2,640 lm | Input power | 24.0 W |
| Efficacy | 110.0 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B3-U0-G0 |
| Beam angle (50% Imax) | 40.0° | Field angle (10% Imax) | 66.0° |
| Voltage | 12V, 24V, 220V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 5,524.5 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 446 mm dia. | Spacing/height (nominal) | 1.30 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 2,336 | 88.5% |
| 0–60° | 2,640 | 100.0% |
| 0–90° (total) | 2,640 | 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° | 1,168 | 1,168 |
| Mid 30–60° | 152 | 152 |
| 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° | 5,524.5 | 46° | 33.1 |
| 1° | 5,521.6 | 47° | 25.3 |
| 2° | 5,509.3 | 48° | 19.1 |
| 3° | 5,484.3 | 49° | 14.3 |
| 4° | 5,444.6 | 50° | 10.7 |
| 5° | 5,388.8 | 51° | 7.9 |
| 6° | 5,315.6 | 52° | 5.8 |
| 7° | 5,224.7 | 53° | 4.2 |
| 8° | 5,115.7 | 54° | 3.0 |
| 9° | 4,988.9 | 55° | 2.1 |
| 10° | 4,844.6 | 56° | 1.5 |
| 11° | 4,683.8 | 57° | 1.1 |
| 12° | 4,507.7 | 58° | 0.7 |
| 13° | 4,317.6 | 59° | 0.0 |
| 14° | 4,115.3 | 60° | 0.0 |
| 15° | 3,902.7 | 61° | 0.0 |
| 16° | 3,682.0 | 62° | 0.0 |
| 17° | 3,455.3 | 63° | 0.0 |
| 18° | 3,224.9 | 64° | 0.0 |
| 19° | 2,993.2 | 65° | 0.0 |
| 20° | 2,762.3 | 66° | 0.0 |
| 21° | 2,534.4 | 67° | 0.0 |
| 22° | 2,311.5 | 68° | 0.0 |
| 23° | 2,095.5 | 69° | 0.0 |
| 24° | 1,888.1 | 70° | 0.0 |
| 25° | 1,690.5 | 71° | 0.0 |
| 26° | 1,504.0 | 72° | 0.0 |
| 27° | 1,329.5 | 73° | 0.0 |
| 28° | 1,167.5 | 74° | 0.0 |
| 29° | 1,018.5 | 75° | 0.0 |
| 30° | 882.5 | 76° | 0.0 |
| 31° | 759.4 | 77° | 0.0 |
| 32° | 649.0 | 78° | 0.0 |
| 33° | 550.8 | 79° | 0.0 |
| 34° | 464.1 | 80° | 0.0 |
| 35° | 388.2 | 81° | 0.0 |
| 36° | 322.4 | 82° | 0.0 |
| 37° | 265.8 | 83° | 0.0 |
| 38° | 217.5 | 84° | 0.0 |
| 39° | 176.7 | 85° | 0.0 |
| 40° | 142.4 | 86° | 0.0 |
| 41° | 113.9 | 87° | 0.0 |
| 42° | 90.4 | 88° | 0.0 |
| 43° | 71.2 | 89° | 0.0 |
| 44° | 55.6 | 90° | 0.0 |
| 45° | 43.1 |
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 | 1,381 | 938 | 251 | 35 | 4 | 1.5 m |
| 2.5 m | 884 | 698 | 302 | 77 | 15 | 1.8 m |
| 3.0 m | 614 | 525 | 296 | 112 | 31 | 2.2 m |
| 3.5 m | 451 | 404 | 268 | 130 | 49 | 2.5 m |
| 4.0 m | 345 | 318 | 234 | 135 | 63 | 2.9 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.