Photometric Data Sheet
| Luminaire | Folky III - Industrial Lights, 60 deg | Lamp / LED | Integrated LED module |
|---|---|---|---|
| Luminous flux | 28,000 lm | Input power | 180.0 W |
| Efficacy | 155.6 lm/W | CCT | |
| CRI | >90 | BUG rating (TM-15-11) | B4-U0-G1 |
| Beam angle (50% Imax) | 60.0° | Field angle (10% Imax) | 99.0° |
| Voltage | AC 100~277V |
| Distribution | Direct, rotationally symmetric | Maximum intensity | 26,760.8 cd |
|---|---|---|---|
| At angle | 0° V | Luminous shape | Circular |
| Luminous size | 887 mm dia. | Spacing/height (nominal) | 2.34 |
Polar distribution, rotationally symmetric. 0° is straight down.
| Zone | Lumens | % of total |
|---|---|---|
| 0–30° | 16,822 | 60.1% |
| 0–60° | 27,587 | 98.5% |
| 0–90° (total) | 28,000 | 100.0% |
Flux emitted within each downward cone. 60% of the total falls inside the rated beam angle.
| Zone | Back lm | Front lm |
|---|---|---|
| Low 0–30° | 8,411 | 8,411 |
| Mid 30–60° | 5,382 | 5,382 |
| High 60–80° | 203 | 203 |
| Very high 80–90° | 4 | 4 |
| 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° | 26,760.8 | 46° | 3,870.6 |
| 1° | 26,755.5 | 47° | 3,493.8 |
| 2° | 26,732.9 | 48° | 3,143.9 |
| 3° | 26,687.0 | 49° | 2,820.2 |
| 4° | 26,613.9 | 50° | 2,522.0 |
| 5° | 26,510.3 | 51° | 2,248.1 |
| 6° | 26,373.9 | 52° | 1,997.5 |
| 7° | 26,202.5 | 53° | 1,769.2 |
| 8° | 25,994.6 | 54° | 1,561.9 |
| 9° | 25,749.0 | 55° | 1,374.3 |
| 10° | 25,465.1 | 56° | 1,205.3 |
| 11° | 25,142.3 | 57° | 1,053.6 |
| 12° | 24,780.7 | 58° | 917.9 |
| 13° | 24,380.5 | 59° | 797.0 |
| 14° | 23,942.4 | 60° | 689.7 |
| 15° | 23,467.4 | 61° | 594.8 |
| 16° | 22,956.7 | 62° | 511.2 |
| 17° | 22,412.0 | 63° | 437.8 |
| 18° | 21,835.1 | 64° | 373.7 |
| 19° | 21,228.3 | 65° | 317.8 |
| 20° | 20,593.9 | 66° | 269.3 |
| 21° | 19,934.6 | 67° | 227.5 |
| 22° | 19,253.1 | 68° | 191.4 |
| 23° | 18,552.4 | 69° | 160.5 |
| 24° | 17,835.7 | 70° | 134.1 |
| 25° | 17,106.2 | 71° | 111.6 |
| 26° | 16,367.1 | 72° | 92.6 |
| 27° | 15,621.7 | 73° | 76.5 |
| 28° | 14,873.3 | 74° | 63.0 |
| 29° | 14,125.1 | 75° | 51.7 |
| 30° | 13,380.4 | 76° | 42.2 |
| 31° | 12,642.2 | 77° | 34.4 |
| 32° | 11,913.4 | 78° | 27.9 |
| 33° | 11,196.9 | 79° | 22.5 |
| 34° | 10,495.2 | 80° | 18.1 |
| 35° | 9,810.8 | 81° | 14.5 |
| 36° | 9,145.8 | 82° | 11.6 |
| 37° | 8,502.2 | 83° | 9.2 |
| 38° | 7,881.6 | 84° | 7.3 |
| 39° | 7,285.6 | 85° | 5.8 |
| 40° | 6,715.3 | 86° | 4.5 |
| 41° | 6,171.8 | 87° | 3.6 |
| 42° | 5,655.6 | 88° | 2.8 |
| 43° | 5,167.3 | 89° | 0.0 |
| 44° | 4,707.0 | 90° | 0.0 |
| 45° | 4,274.8 |
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 | 6,690 | 5,461 | 2,852 | 1,099 | 378 | 2.3 m |
| 2.5 m | 4,282 | 3,776 | 2,483 | 1,278 | 570 | 2.9 m |
| 3.0 m | 2,973 | 2,732 | 2,046 | 1,268 | 686 | 3.5 m |
| 3.5 m | 2,185 | 2,056 | 1,668 | 1,167 | 725 | 4.0 m |
| 4.0 m | 1,673 | 1,598 | 1,365 | 1,038 | 713 | 4.6 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.