Efficiency of the average 24 watt HID ballast?

cchurchi · Nov 28, 2007

I have a wolf eyes boxer 24 watt flashlight and was wondering how efficient the ballast is. Assuming you ran a 24 watt HID light with a seperate power supply providing current to the ballast, and the 3 on board 18650 batteries were only used to provide the arc, how much additional run time over the standard 1 hour would one expect?

Just curious as to how much extra run time HID lights will have in the near future because of improved ballast designs.

wulfgang · Dec 12, 2007

You answered your own question. If the batteries last 1 hour and they are 2600 mAh 18650s, then that's roughly 83% efficiency.

Ra · Dec 14, 2007

Most of todays ballasts have an efficiency of close to 90% and even over..

10% is a small prize to pay for exellent regulation to the bulb.

The biggest total efficiency-loss is caused by the bulb-reflector setup: With about 65% bulb-lumens to torch-lumens, there is the place to be if you want improve total torch-efficiency!

Regards,

Ra.

Efficiency of the average 24 watt HID ballast?

cchurchi

Enlightened

wulfgang

Newly Enlightened

Ra

Flashlight Enthusiast

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