Photometric Data Sheet
| Luminaire | Tara - Wall Surface, 36 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 520 lm | Input power | 8.0 W |
| Efficacy | 65.0 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 | AC220~240V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 1,337.9 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 600 mm dia. | Spacing/height (nominal) | 1.14 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 486 | 93.4% |
| 0–60° | 520 | 100.0% |
| 0–90° (total) | 520 | 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° | 243 | 243 |
| Mid 30–60° | 17 | 17 |
| 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° | 1,337.9 | 46° | 1.8 |
| 1° | 1,337.0 | 47° | 1.3 |
| 2° | 1,333.2 | 48° | 0.9 |
| 3° | 1,325.4 | 49° | 0.6 |
| 4° | 1,313.1 | 50° | 0.4 |
| 5° | 1,295.7 | 51° | 0.3 |
| 6° | 1,273.1 | 52° | 0.2 |
| 7° | 1,245.2 | 53° | 0.0 |
| 8° | 1,211.8 | 54° | 0.0 |
| 9° | 1,173.3 | 55° | 0.0 |
| 10° | 1,129.8 | 56° | 0.0 |
| 11° | 1,081.7 | 57° | 0.0 |
| 12° | 1,029.6 | 58° | 0.0 |
| 13° | 974.0 | 59° | 0.0 |
| 14° | 915.7 | 60° | 0.0 |
| 15° | 855.2 | 61° | 0.0 |
| 16° | 793.5 | 62° | 0.0 |
| 17° | 731.1 | 63° | 0.0 |
| 18° | 669.0 | 64° | 0.0 |
| 19° | 607.7 | 65° | 0.0 |
| 20° | 548.0 | 66° | 0.0 |
| 21° | 490.5 | 67° | 0.0 |
| 22° | 435.7 | 68° | 0.0 |
| 23° | 384.0 | 69° | 0.0 |
| 24° | 335.7 | 70° | 0.0 |
| 25° | 291.2 | 71° | 0.0 |
| 26° | 250.5 | 72° | 0.0 |
| 27° | 213.7 | 73° | 0.0 |
| 28° | 180.8 | 74° | 0.0 |
| 29° | 151.6 | 75° | 0.0 |
| 30° | 126.1 | 76° | 0.0 |
| 31° | 103.9 | 77° | 0.0 |
| 32° | 84.9 | 78° | 0.0 |
| 33° | 68.7 | 79° | 0.0 |
| 34° | 55.1 | 80° | 0.0 |
| 35° | 43.8 | 81° | 0.0 |
| 36° | 34.5 | 82° | 0.0 |
| 37° | 26.9 | 83° | 0.0 |
| 38° | 20.8 | 84° | 0.0 |
| 39° | 15.9 | 85° | 0.0 |
| 40° | 12.0 | 86° | 0.0 |
| 41° | 9.0 | 87° | 0.0 |
| 42° | 6.7 | 88° | 0.0 |
| 43° | 4.9 | 89° | 0.0 |
| 44° | 3.6 | 90° | 0.0 |
| 45° | 2.6 |
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 | 334 | 209 | 41 | 4 | 0 | 1.3 m |
| 2.5 m | 214 | 161 | 57 | 11 | 1 | 1.6 m |
| 3.0 m | 149 | 123 | 61 | 18 | 4 | 1.9 m |
| 3.5 m | 109 | 96 | 58 | 24 | 7 | 2.3 m |
| 4.0 m | 84 | 76 | 52 | 26 | 10 | 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.