Craig,<br><br>Apparently I wasn't clear enough about that, I'll have to look at the descritpion again. The micro-chip has 3 constant on levels of illumination; high, mediuum and low, plus the instant high from pressing thre other end of the button. Using the chip allows them to do away wth the little switch sticking through the momentary button on the PII, thus it retains its integrity and water resistance while still allowing constant on operation, which I consider critical.<br><br>Hope this clears things up.<br><br>Doug Ritter<br>Editor<br>Equipped To Survive