LED indicator, lights blue when inserted into the cigarette lighter. Output accurate current limit and overload protection internal high temperature protection auto restart after troubleshooting. Compliant with CE,FCC, E-MARK, ROHS standard. Strong anti- interference ability, fast charging. Product shell is made of fireproof material. Auto protection. Light weight, smart and convenient to use. Suitable for charging for mobile phone, MP3, camera or the lithium battery equipment and so on. Weight : 47 gms. Dimension (LXWX H ) : 55.6 X 29.5 X 26.5 mm. 3-year warranty