the watchmaker glasses are of high quality, it is equipped with a white LED that illuminates on each optical well and is adjustable, they grow enough to see details specifically, LEDs do not consume energy because I have these glasses for about 2 years and they always work with the same intensity without ever having to change the batteries! I strongly advice you buy these glasses for all watch lovers, and in general to all people who want to look in detail objects. the price / quality ratio is unbeatable!