1.Push button hole diameter:16mm, push button hole thread:1mm. 2.High quality metal material and IP65 waterproof protection can be used in humid environment or dusty.Metal shell, brand new and high quality, mechanical life 500,000 cycles 3.Switch and LED are separated, LED can be on continuously or only when switch is on, depending on the wiring method used 4.Can be used as a switch for various additional electrical equipment, inside and outside the car (critical lights, chassis lamp, lights fog lights, ceiling light, etc.). Blue color Quantity sold: 2pcs(includes two cord holders) Installation size: 16mm Type of light source: LED Rated working current of contact: 5 A Working environment temperature: -20~+85 Operating voltage: 250 (V) Working mode: button with light Contact structure: composite button Protection method: waterproof Working current: 5 (A) Contact resistance: 50m () Insulation resistance: 1000M (M) Head protection level: IP67 Operating temperature: -20~+85 () Product certification: CCC Electrical life: 200,000 Mechanical life: 500,000 (times) Panel thickness: 1~15 (mm) Operating pressure: approx. 4N Operating stroke: 1.5 (mm) Nut torque: 5~14 Nm Rated voltage range 3C: 36 V and below Reset method: automatic reset Head protection degree: IP67 About chromatic aberration: The goods sold are all taken in kind, but due to different lighting, monitors, etc. , there will be a little color difference, which is a normal phenomenon, not a quality problem