To add a new light when you ride a motorbike is a plus for your safety. So...I had a small light decorative for my motorbike. Was gained some years ago before the LED attack. It had a small 12V DC lamp. I never used it and burried throuhgt the years. Recently I find it and after checkin that is works i decided to use it but replacing the 12V lamp with a bright red led of 1,7V. The replacement was really easy. After i decided to light it up using a cell battery of 3,6V i didn't add any resistor. Then I decided to place it on the top on my helmet. So for doing this we need some tools....
Step 1: Materials and Tools
Some Wire (a pair) about 30cm long and another pair about 10cm for the battery
A small switch capable to fit on the light
a LED 1,7-2,2 V bright Red
Some heat Srink tube about 20cm
a cellular phone battery pack above 3V
a plastic case for the battery made from any plastic or from old cell battery
a lighter fot shrinking the cable tubes
and a helmet....
a small lamina about 5cm made of copper
hot glue pistol
a drill of 2.5" for metalls
a drill gun