Hello,

This is a replacement cap designed for this style of headlamp. You have the option to print either a version that does not require a magnet (first plate) or one that has a 20x2mm round magnet incorporated into the design (second plate).

Additionally, you can download the *.f3d file (Fusion 360 file) to make any necessary adjustments if the design does not fit as expected or if you wish to use a different size magnet.