Photometric Data Sheet
| Luminaire | GHALA - Suspended & Pendant, 90 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 2,800 lm | Input power | 20.0 W |
| Efficacy | 140.0 lm/W | CCT | |
| CRI | >90 | UGR | <19 |
| Beam angle (50% Imax) | 90.0° | Field angle (10% Imax) | 130.2° |
| Voltage | 85-265V 50/60Hz |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 1,381.6 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 500 mm dia. | Spacing/height (nominal) | 4.30 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 1,090 | 38.9% |
| 0–60° | 2,582 | 92.2% |
| 0–90° (total) | 2,800 | 100.0% |
Flux emitted within each downward cone. 72% of the total falls inside the rated beam angle.
Centre-beam illuminance and beam diameter on a surface directly below.
| γ | cd | γ | cd |
|---|---|---|---|
| 0° | 1,381.6 | 46° | 655.2 |
| 1° | 1,381.5 | 47° | 619.9 |
| 2° | 1,381.5 | 48° | 584.8 |
| 3° | 1,381.4 | 49° | 550.1 |
| 4° | 1,381.2 | 50° | 516.1 |
| 5° | 1,380.8 | 51° | 482.7 |
| 6° | 1,380.3 | 52° | 450.2 |
| 7° | 1,379.5 | 53° | 418.6 |
| 8° | 1,378.4 | 54° | 388.0 |
| 9° | 1,376.9 | 55° | 358.6 |
| 10° | 1,375.0 | 56° | 330.5 |
| 11° | 1,372.7 | 57° | 303.6 |
| 12° | 1,369.8 | 58° | 278.1 |
| 13° | 1,366.3 | 59° | 254.0 |
| 14° | 1,362.2 | 60° | 231.3 |
| 15° | 1,357.3 | 61° | 210.0 |
| 16° | 1,351.6 | 62° | 190.2 |
| 17° | 1,345.1 | 63° | 171.8 |
| 18° | 1,337.6 | 64° | 154.9 |
| 19° | 1,329.1 | 65° | 139.3 |
| 20° | 1,319.6 | 66° | 125.1 |
| 21° | 1,309.0 | 67° | 112.1 |
| 22° | 1,297.2 | 68° | 100.4 |
| 23° | 1,284.2 | 69° | 89.8 |
| 24° | 1,269.9 | 70° | 80.4 |
| 25° | 1,254.3 | 71° | 71.9 |
| 26° | 1,237.5 | 72° | 64.4 |
| 27° | 1,219.3 | 73° | 57.8 |
| 28° | 1,199.7 | 74° | 51.9 |
| 29° | 1,178.7 | 75° | 46.8 |
| 30° | 1,156.4 | 76° | 42.4 |
| 31° | 1,132.7 | 77° | 38.5 |
| 32° | 1,107.7 | 78° | 35.1 |
| 33° | 1,081.4 | 79° | 32.2 |
| 34° | 1,053.8 | 80° | 29.6 |
| 35° | 1,025.1 | 81° | 27.5 |
| 36° | 995.2 | 82° | 25.6 |
| 37° | 964.2 | 83° | 23.9 |
| 38° | 932.3 | 84° | 22.5 |
| 39° | 899.5 | 85° | 21.3 |
| 40° | 865.9 | 86° | 20.2 |
| 41° | 831.7 | 87° | 19.3 |
| 42° | 796.9 | 88° | 18.4 |
| 43° | 761.8 | 89° | 17.7 |
| 44° | 726.3 | 90° | 0.0 |
| 45° | 690.8 |
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 | 345 | 311 | 220 | 124 | 61 | 4.0 m |
| 2.5 m | 221 | 207 | 166 | 114 | 69 | 5.0 m |
| 3.0 m | 154 | 147 | 127 | 98 | 68 | 6.0 m |
| 3.5 m | 113 | 109 | 98 | 81 | 62 | 7.0 m |
| 4.0 m | 86 | 84 | 78 | 67 | 55 | 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.