From the leading British manufacturer of dimmer switches and decorative wiring accessories; Varilight dimmable transformers and LED drivers offer ultra cool running, captive screws, compact size and robust terminals for easy installation. Choose Varilight transformers for optimum compatibility with Varilight dimmerswitches. Features: Soft start gently brings lights up to full brightness when you switch on and extends lamp life Auto-resetting overload protection and over-temperature 1 x pair of input terminals and 2 x pairs of output terminals Short circuit protection - IP20 Intended Applications: Domestic lighting circuits Application Advice: Minimum distance between Driver and lamp: 30cm. This product is not suitable for use with LEDs Specifications: Dimensions: H:10.8 x W:4.4 x D:3.3 cm Weight: 0.1 kg Colour: Grey Guarantee:10 years Model Number: YT105Z. Varilight 105W low voltage transformer range that has no minimum load. The 105W version isn't LED compatible, only the 50W version is.