Universal compatible with 12V-24V equipment,allow any marine or with a cigarette plug attachment to be used with these surface mount cigarette sockets. 3.1A(1A+2.1A) Dual USB power charger for charging GPS, mobile phone, camera, mp3,tablet. Waterproof dustproof material can be used for the interior and exterior application. Short circuit / overheat protection.Include 2 screws,6 terminal connections and 2 short cables. Rating: 12V-24V,Barrel inner diameter:2.1cm/0.83″,Barrel inner length:3.6cm/1.42″ SOME DETAILS Package Includes 1 X Tent Type Combination Panel 6 X Insulated Terminals2 X Self-tapping Screws1 X Red Wire1 X Black Wire SPECIFICATION Power Socket Input: DC 12V-24VMaterial: copper + ABS High Temperature Resistant Nylon Flame Retardant USB