DIY Doctor UK DIY Forums

Hello all. I've bought a 2 bar spotlight and noticed there's a switch on the side of it that says 43.409. I'm new to electrics and probably won't fit it myself ( me scaredy cat! ) but was wondering what that switch does as there's no reference to it in any of the accompanying leaflets and instructions. Anyone know?

probably there in case you use it as walllight just leave it in on position if fitted as ceiling light