GL - Ampül

ADVANTAGE

• simpliest and cheapest light source
• well known technique
• availability in various designs, voltages and performances

DISADVANTAGE

• low light output 8 - 18 lm/W
• limited lifetime - approx. 1.000 h for standard bulbs
• significantly reduced lifetime in case of vibrations, shock, flashing mode etc.
• blackening of glass body with increasing lifetime
• "yellow" light
• relatively high loss of light energy when penetrating coloured lenses