The Arcstream Constant Colour CMH lamps incorporate new arc tube technology, which, rather than Quartz, uses the same material for the arc tube as High Pressure Sodium lamps.. This improves colour stability dramatically and improves life. All style descriptions are prefixed with ARC with the exception of CMH and the 100 Watt MXR lamp.

Arcstream Single Ended Metal Halide Lamps
70W and 150W compact single-ended tubular metal halide lamps have quartz outer bulbs that reduce lamp size for use with compact spotlight luminaires. They must be used in enclosed luminaires with protection against UV radiation from the lamp. Rendering average is Ra80 and there is a choice of colour temperature 3000K or 4000K. The 250W and 400W tubular E40 capped lamps, can also be retro fitted into existing High Pressure Sodium luminaires, which must be enclosed. Colours available are 4200K, Ra70 and 6000K, Ra 90.

Elliptical 250W clear and diffuse lamps run on 250W Sodium ballasts but ignitor compatibility must be checked.

Arcstream Double-Ended Metal Halide Lamps
These are also high performance lamps for display lighting and floodlighting. The range is 70, 150 and 250W. The outer tubular bulb is made of quartz and so external UV protection is essential. These lamps are warm to neutral colour appearance with three colour temperatures 3000K, 3500K and 4300K, and give good colour rendering (Ra75). Special instant hot re-strike control gear with a very high starting pulse (20kV or more) is available but it is important to check the luminaire is suitable for such high voltages.

Figure 9.13. European metal halide lamps.

Sportlight.
The Sportlight range has CSI sealed beam, double ended and single ended lamps rated at 750 Watts and over, designed for exterior floodlighting including TV outdoor broadcasting. They are also used for major sports arenas. All types use control gear specific to the style, supply voltage and wattage. CSI lamps are rated at 1000W and double ended lamps range from 750W to 2000W. Special versions of Sportlight lamps are available for hot re-strike. All style descriptions are prefixed with SPL with the exception of the PAR 64 lamp, prefixed CSI.

Mercury Lamps

Mercury lamps are available in five models:

• Kolorlux Standard
• Kolorlux Deluxe
• Kolorlux DX Long Life
• Blended Light (MBTF)
• Reflector (MBFR)