The light can be firmly attached to the helmet. Unfortunately, the velcro tightening tore during the night while changing the battery. Fortunately, the bundle saved the situation and the journey continued.
I bought a bracket for a cycling helmet. Fits well in place and is sturdy. The plus is the very long velcro straps that are sure to be shortened in almost any helmet. But it doesn't end there. The Lumonite Air2 light stays in place and you can still adjust the angle of the light with one hand.