LED button diameter: 16mmVoltage range:3S-14S (12V-60V)Max current:200A(It is better to increase bigger heat sink)Continuous current:100A(With Aluminum PCB/case V3.0),60A(with heatsink)Burst current 800A(theoretical current)V3.0PCB thickness: 6 layer*3oz copper=18oz copperPro V3.0 Dimensions(with heatsink and heat shrink): 42.2mm X 33mm X 26.6mm(12AWG Wire)With Aluminum PCB/case V3.0 Dimensions:72mm X 37mm X 16.2mm(8AWG Wire)Due to different batches, the appearance, color, and printed words of the product may vary, which does not affect its use.Colour:blackMaterial:plasticPackage Contents:1 x Antispark SwitchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.