Lampholder Designs

Lux is a measure of illumination on a surface (lumens per square metre) and the values given in the diagrams show the peak intensity at the beam centre at distances of 1, 2, 3 and 4 metres from the lamp.

The beams are drawn at the end angle where the intensity is 50% of the intensity at the centre. The lux values in the diagrams are reproduced from lamp manufacturers' data.

Lamp Selection Data

Click Picture for Beam Angles and Lux Levels.

GU 10
  • Benefits of low-voltage lighting without the need for a transformer.
  • Bright white light.
  • Easy to dim.
  • Excellent colour rendering.
  • More lumens per watt, longer lamp life and superior beam control compared with standard incandescent lamps.
  • Choice of beam angles
Par 16 (GU)
Hi Spot 63 (GU)

Lv Halogens 35mm
  • Excellent colour rendering.
  • High-intensity light output.
  • Crisp, white light.
  • Precise beam control.
  • Wide choice of wattages and beam angles.
  • Attractive appearance of lamps, particularly dichroic lamps.
  • Energy-efficient and long lamp life.
  • Dichroic reflector lamps throw less heat forward compared with standard incandescent lamps.
  • Safer than mains-voltage lighting
  • Compact, unobtrusive fittings.
  • Dimmable.
Lv Halogens 50mm

Par 16 (ES)
  • Benefits of low-voltage lighting without the need for a transformer.
  • Bright white light.
  • Easy to dim.
  • Excellent colour rendering.
  • More lumens per watt, longer lamp life and superior beam control compared with standard incandescent lamps.
  • Choice of beam angles
Par 20 (ES)
Par 30
Par 38 - Halogen

R50
  • Wide choice of wattages and types.
  • Low initial cost.
  • Easy to dim.
  • Excellent colour rendering.
  • Good lumen maintenance.
  • Very versatile - can provide general, accent and display lighting.
R60
R63
R80

Source: iLLUMA Lighting