The "Lento (1800 lm)" lamp from Paulmann can generally be used with a normal wall switch, but there are a few restrictions to bear in mind. The lamp is dimmable, but it must be used with a dimmable switch or a dimmable control unit in order to utilise the dimming function. With a non-dimmable wall switch, the lamp can be switched on and off, but the dimming function will not be available.