new bulb for petzl duo?

Chuen

Newly Enlightened
Joined
Jun 30, 2001
Messages
112
Location
Hong Kong
Petzl used to rate the halogen bulb at 3 hour runtime. However, they now change the specification to 4.5 hour. What is more puzzling is another of their 4aa light, saxo aqua, is still rated at 3 hour. Both runtime figure are listed on the same comparison chart so it's probably not a mistake. Can somebody shine some light on this? I'm asking this since I just got a petzl duo LED and the halogen beam output seems to be a bit on the low side. An eariler post stated that the duo bulb is rated 5.2v 0.5A. This should give an output similar to the UKE 2L. However, my measurements show that the duo is only half as bright as the UKE 2L. I'm going get the saxo bulb for my DUO if petzl indeed using a lower power bulb.
 
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