Have selbige lamp, but from Eb .. and only with "Dodocool" lettering without lumens specification. With these things it's always luck what you get, my spitting 2500-3500 lumens, for the price is really mallet can not tell you otherwise! me is the part several times already fallen down (on concrete!) and it still works like the first day. the lamp even after an hour ago use with PCB with such a performance please be sure to brand batteries, as is also almost as bright as fresh batteries!
Oh, and as a comparison I have a ThruNite TN36 (6500 lumens) and a neutron c2 v2 (1000 lumens), both good brand lamp.