HEATSINK 25MM; Product Range:-; For Use With:Star LEDs; Heat Sink Material:Aluminium; Thermal Resistance:-; External Height:18mm; External Diameter:45mm; SVHC:No SVHC (12-Jan-2017); External Diameter - Imperial:1.772"; External Diameter - Metric:45mm; External Height - Imperial:0.98"; External Height - Metric:25mm; External Length - Imperial:1.77"; External Length - Metric:45mm; External Width - Imperial:1.77"; External Width - Metric:45mm; Packages Cooled:LED