Slightly disappointed 5

From externals the quality is ok. With 4 batteries R14 unfortunately get no contact in the lamp. The interior length dimensions are not correct and the batteries rattling back and forth. With a self-the constructed intermediate piece of 8mm length finally light.
Disappointment. The light output of 11,000 lumens is probably 500 lumens. The little brother of Cree lamp indicated 1600 lumens is simply much brighter. Have thus sent back the lamp.