These lamps offer the following advantages:
• extreme high light output for a halogen system with 40 lumen per Watt (standard high voltage halogen lamps only provide approximately 20 lumen per Watt)
• resistant to shock and vibration (which is definitely not a virtue of high voltage halogen lamps)
• drastically lower purchase cost (75 % less)
• longer life expectancy
• BUT: As all halogen lamps which offer very high light output, such lamps are sensitive to over voltage.