Originally Posted by
wingless
Both the
Cygolite Hotshot Pro 150 USB 150 Lumen single lamp and the
Cygolite Hypershot 350 USB 350 Lumen dual lamp rear lights are approximately the same size and almost identical mass.
Somehow they both have identical specified run time, 2 - 200 hours, depending upon the setting. Both have Li-ion batteries, probably the same battery.
My expectation is that driving two lamps would use about twice the power, decreasing the run time, but somehow they are specified for the same. So, if that is true, go for the 350, otherwise the 150 is a great lamp that cannot be missed.
A manufacturer's reply to my inquiry about equivalent run times while the Hypershot being 2X brighter has been received.
They informed me that the Hypershot has newer technology, increasing the brightness while maintaining the run time.
The documented run times versus modes showed some modes had longer run times with one, versus other modes longer with the other, but both almost the same.