User manual

5
The direction the LED is installed is very im-
portant. An LED has a shorter leg (cathode =
negative pole) and a longer leg (anode =
positive pole). Inside the LED you can make
out a slightly larger holder at the minus side,
which carries the actual LED crystal.
After everything is set up and double-checked, we need to
connect the battery - and now you have got a red LED light
with a switch. If you push the left switch to ON, the red LED
goes on. If this doesn’t work, check the setup again. The most
common mistake is that the LED was installed the wrong way
round. No worries, nothing gets broken should this happen.
Just install the LED correctly, and it will work.