LED

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    Ansorg GmbH
    Pilgerstrasse 11
    D - 45473 Mülheim / Ruhr
    T +49 (0) 208 48 46 0
    F +49 (0) 208 48 46 1200

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LED in comparison with HID

Comparison of a HID and a LED lighting concept in a sample salesroom

                                                                                                                                                               

HIT concept

HID concept

LED concept

LED concept

The reflector characterisitics of the HID luminaires create uniform, brilliant lighting of the retail areas. Characteristic are the soft transitions of cones of light. Due to a certain percentage of scattered light, harmonious luminance is obtained which creates a homogeneous room atmosphere. As compared with the LED concept, the HID concept shows a minimally higher efficiency.

The quantity of light is concentrated on the area to be illuminated. As a result, the transitions of the cones of light seem more clearly delimited from each other. The reflector characteristics of the LED luminaires entail only a very low percentage of scattered light; the aisle areas receive less light and appear darker. Thus a room ambiance full of contrasts is produced.

                                                                                                                                                                                                                                   

HID concept

LED concept

Shop area
                                     

132 m²

132 m²

Number of luminaires
                                        

64

64

Beam angle
                                        

42°

40°

Luminous flux of light source

4000 lm

3540 lm

Efficiency (LOR)

0.63

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System luminous flux of luminaire

2520 lm

2800 lm

System power

42 W

36 W

System luminous efficacy                      

60 lm/W

78 lm/W

Energy consumption

20.4 W/m²

17.5 W/m²

mean vertical illuminance/homogeneity
- Retail zone
- Decorative area
- Eye level



670lx/g1=1:0.3
960lx/g1=1:0.3
990lx/g1=1:0.5



680lx/g1=1:0.1
1000lx/g1=1:0.1
1000lx/g1=1:0.5

mean horizontal illuminance/homogeneity
- shop floor

                                                                                                 

880lx/g1=1:0.4

                    

830lx/g1=1:0.37



Definition of the perimeter

Definition of the perimeter