ADVANTAGE
higher light output than bulb - up to 25 lm/W
longer lifetime (appro. twice as bulbs, depending on bulb type)
less blackening of glass body - constant light current during the whole lifetime
DISADVANTAGElimited lifetime - approx. 1.500 - 3.000 h (depending on bulb type and voltage)reduced lifetime withblackening of glass body with increasing lifetime"yellow" lightrelatively high loss of light energy when penetrating coloured lenses
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