Input: 100~240V 50/60Hz; output: 12V DC, 2A 24W max; Works well with car devices that draws less than 2A, such as 1A, 1.5A, 2A. Please don’t overload this power adapter over 24W for a long time. Otherwise, the lifespan will be greatly shortened..Replacement: This Adapter is a Brand New Replacement One, Not Original.Multiple Safety Protections such as: Anti EMI Interference, Surge Protection, Short-Circuit Protection, Over-Load Protection, Over-Current Protection and Over-Temperature Protection etc..DON'T use it to power these automotive electronics: car refrigerator, car vacuum cleaner, air pump, air compressor, tire inflator, cooler & warmer box, lunch box, coffee mug etc! It only works with electronics UNDER 2A 24W. Please carefully check your devices' power rating before buy..This car cigarette lighter is ONLY suitable for some low-power car equipment, such as car MP3, MP4 player Car Dash Cam and so on, NOT for high-power devices (such as high-power car air compressors, waxing machines, etc.) to achieve home use.