Trio Duoline Middle-/Endpoint Track power supply Matt black

This indicates whether the light source is included or not. If the lamp(s) are not included, you will find the matching lamp in accessories.

The appliance class indicates the extent to which the appliance protects against electric shock. The degree of insulation is shown according to ascending protection values "I", "II" and "III". The higher the device class, the higher the degree of protection.

The IP rating is a standardised rating system that indicates the degree of protection the device provides against the ingress of solid objects (such as dust) and liquids (such as water). For example, an IP65-rated device has good protection against solids (IP6X) and is resistant to spray water (IPX5). The higher the IP rating, the better protected the device is. "Read more.

This indicates whether the brightness of this product can be adjusted using a dimmer. This does not mean that a dimmer is included.

This tells you whether the manufacturer allows the product to be installed outdoors. Lighting for outdoor use has better resistance to elements such as rain, heat, UV or even corrosion. These fixtures always have a higher IP rating to prevent water damage.