Because I destroyed the led of my Astrolux S1,I sent it to a friend who changed the led and bypassed the springs.
As it had passed enough time because the led came from China,I had forgot that the led which is now in,is not the original,but a XP-L Hi,so when I measured the intensity with my luxmeter,I found 19584cd,while it was 11500cd with the original led.Really the S1 shines.
Of course,after 10 seconds I feel intense heat from the light now,much more than before.
Beryllium oxide
Beryllium oxide (BeO), also known as beryllia, is an inorganic compound with the formula BeO. This colourless solid is a notable electrical insulator with a higher thermal conductivity than any other non-metal except diamond, and exceeds that of most metals. As an amorphous solid, beryllium oxide is white. Its high melting point leads to its use as a refractory material. It occurs in nature as the mineral bromellite. Historically and in materials science, beryllium oxide was called glucin Berylli...