Cooling mass = 580 grams/meter, This LED LIGHTING profile is designed for TWO LED flex strips with a maximum width of 12 mm each and is universally used in combination with the cable lock TUNNEL - Art. No. 112844 - indoors as a stand-alone LED pendant luminaire with cable suspension or LED luminaire with cable channel. As a stand-alone LED pendant luminaire or LED luminaire with cable lock, this profile system fills any room with the desired quality of light.