Metal halide lamps combine high luminous output and long lamp life with compact dimensions. Although these lamps have a long starting time, their good colour rendition properties make them a common choice for office lighting systems. The lamps are designed for full-load operation andare not suitable for dimming.
Advantages
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Good luminous output (62-112 lm/W)
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Long lamp life (6,000-8,000 h)
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Good to very good color rendition (Ra > 70)
- Small size
Disadvantages
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Long starting and restriking times
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Not suitable for dimming
- High price