LIGHT PLUS UK

Photometric Data Sheet

CatalogueLP-DL181718

Calculated photometric data — nominal values derived from a distribution model. Not LM-79 laboratory tested.

LuminaireSerie - Down Lights, 38 degLamp / LEDIntegrated LED module
Luminous flux2,160 lmInput power18.0 W
Efficacy120.0 lm/WCCT
CRI>90UGR<19
Beam angle (50% Imax)38.0°Field angle (10% Imax)62.7°
VoltageAC220~240V

Goniometry summary

DistributionDirect, rotationally symmetricMaximum intensity4,997.8 cd
At angle0° VLuminous shapeCircular
Luminous size100 mm dia.Spacing/height (nominal)1.22

Luminous intensity (cd)

124924993748499890°90°

Polar distribution, rotationally symmetric. 0° is straight down.

Zonal lumen summary

ZoneLumens% of total
0–30°1,96791.1%
0–60°2,160100.0%
0–90° (total)2,160100.0%

Flux emitted within each downward cone. 59% of the total falls inside the rated beam angle.

Illuminance cone

1 m4998 luxØ0.7 m2 m1249 luxØ1.4 m3 m555 luxØ2.1 m

Centre-beam illuminance and beam diameter on a surface directly below.

Intensity table

γcdγcd
4,997.846°15.3
4,994.947°11.3
4,982.348°8.2
4,956.749°5.9
4,916.250°4.3
4,859.151°3.0
4,784.752°2.1
4,692.253°1.5
4,581.754°1.0
4,453.455°0.7
10°4,308.056°0.0
11°4,146.657°0.0
12°3,970.758°0.0
13°3,781.859°0.0
14°3,582.160°0.0
15°3,373.561°0.0
16°3,158.662°0.0
17°2,939.563°0.0
18°2,718.964°0.0
19°2,498.965°0.0
20°2,282.066°0.0
21°2,070.267°0.0
22°1,865.668°0.0
23°1,669.769°0.0
24°1,484.070°0.0
25°1,309.671°0.0
26°1,147.472°0.0
27°998.073°0.0
28°861.774°0.0
29°738.375°0.0
30°627.876°0.0
31°529.877°0.0
32°443.578°0.0
33°368.479°0.0
34°303.580°0.0
35°248.081°0.0
36°201.082°0.0
37°161.683°0.0
38°128.884°0.0
39°101.885°0.0
40°79.886°0.0
41°62.087°0.0
42°47.788°0.0
43°36.489°0.0
44°27.590°0.0
45°20.6

Candela at each vertical angle, C0-C180 plane.

Floor illuminance & spacing (lux)

Mounting heightcentre0.5 m1.0 m1.5 m2.0 mBeam Ø
2.0 m1,2498161902121.4 m
2.5 m8006172445481.7 m
3.0 m55546824985212.1 m
3.5 m408362230104352.4 m
4.0 m312286204111482.8 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.