NZ safety standards mean the base of CFL bulbs must be made of flame-retardant material.
Luminous efficacy 10-22lm/w
Lifespan 2,000 hours
Use them For task or spot lighting only. No energy efficient IRC bulbs are currently available for mains voltage halogens
Don't use them For general lighting in any office, educational, industrial or retail applications
Crisp, clean, full spectrum light in a focused beam. No need for a transformer.
A longer filament than in 12V versions means shorter life. Use more energy than IRC low voltage equivalent.
More development is being undertaken on halogen lamps due to demand for its superior lighting characteristics. Low voltage halogens currently have an advantage over mains voltage halogens across most applications.