I own this lamp for a year and a half and, as pointed out other reviews, this is really a high-end object that offers an excellent lighting / size. (I did not know that Amazon.com sells this product). The build quality and finish is without any reproach. - 3 in normal mode power levels (slightly loose head): low, medium, high (+ SOS). - By screwing head passes directly to Turbo mode and / or strobe. (Very intuitive). A little advice to make the most low cost: the Sanyo Eneloop batteries 1.2 Volt (AA). Here it still lights better than a 1.5V disposable battery. - A small tip for clip: by setting the upside can clip the loupiotte on a cap visor ... (it takes well).