With opal glass sphere shade – TR Bulb LED ceiling light The bulb is built directly into the sphere, so that it disappears invisibly into the sphere along with its socket. The brightness of the TR Bulb ceiling light can be regulated using a dimmer in the home installation (not included) and is suitable for lighting private rooms as well as for use in hotels and restaurants. In addition to ceiling mounting, the light can also be used as a wall light. New Zealand-born industrial designer Tim Rundle founded his design studio in 2015, specialising in furniture and lighting designs that are characterised by elegant, technically sophisticated solutions. The TR Bulb collection is a successful example of this.