All Monkey Lights come with a steel anti-theft wire. Just follow the instructions to install it!
Replace one of the plastic mounting straps with a steel wire. It is a lot more difficult for a thief to easily remove! You can't get it off with a knife like the plastic strap. It is possible to remove with wire cutters, but it will take a little while and most bike thieves don't carry wire cutters. Big bike lock cutters will be too big to clip this.
Besides your Monkey Light All you need is a thin steel wire (we used a large paperclip) and some pliers.
Note that this is not 100% theft proof, but its a lot more theft resistant than the standard setup with plastic straps.
Step 1: Find some steel wire and a pliers
First, bend your wire like shown