-Hole sizes: 22/25/30/40mm
-Protection level: lP65/lP67/IK10
-Contact silver-plated gold: 1.5??
-LED super bright cold light source lamp display
-Dedicated special frosted stainless steel ring
-Overall beautiful, high-class and fashionable
-Comply with IEC60947-5-1 GB14048.5 standard