is normal. The plastic protective cap came off after only 1 use. It didn't break the deal, but it didn't make me happy, that's for sure. To be honest I would like someone to remake the switch. As soon as you put this viewfinder in your pocket, the switch is activated, the LED lights up and in no time at all your battery will be empty. Keeping the green slide switch for the pulse or sustained function is fine, but adding a simple recessed on/off switch would eliminate the above issue. can it put behind the VFL? However, the design you see here is common regardless of manufacturer, which is why I gave it 3 stars. Change the design of the switch, upgrade the protective cap and get 5 stars.