Feature 1Can protect vehicle electronic equipment during welding or jumping start. 2150mm Automotive surge absorber protector 12/24v prevents damage to the electrical system when welding sheet metal pulses. 3Prevent voltage spikes from damaging the electrical system during welding or jumping start. 4Designed to be installed across battery terminals to absorb unnecessary surges. 5Green light LED indicator for protection; Red light for no protection. Without protection, an alarm can go off.Condition: 100% Brand NewItem Type: Surge ProtectorMaterial: Metal, rubber, ABSApplicable: Suitable for 12V / 24V systems.Polarity protection - reverse connection warning .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Surge Protector