hello, I put 4 stars because there is some deception on the power I think .without be expert and have no means to verify the power, I just say it is not 900 lumens. having had for 10 years a sure fire control 8x under my night work .I just say for sure if that fails has its .she level fesais 126 lumens. anyway this lamp even if slightly less powerful (I think within 90 lumens saw nose) remains a great deal .for a mere 10 euros a 90 lumens lamp c is simply stunning! So I strongly advise! zooming is convenient and 3 positions are well manage .the model appears solid .reste have duration but that price is top c ...