The SS Eiger QTC 10280 is 26.9g w/o battery, and 32.3g with.
The SS Eiger QTC 10180 is 23.5g w/o battery, and 26.9g with.
(Both without the split ring at the back, BTW)
The head alone is 9,2g
In the peak flashlights the QTC should work much longer, than the usual QTC pills without the brass capsule. Do You know - how long the QTC is working in this flashlights? I want to buy one of them.