12V-24V 3.4A Fast Charging Car Charger Dual USB

With voltage and current meter tester. Easy to satisfy your need with dual USB socket. Fixed support helps stabilize the USB car charger. Multifunction product with 10A protection tube, perfect for travel use. Apply to all USB charging mobile phones or other electronic products. This easily installed 5V, 3.4A output port holds your smart phone, GPS, MP3. Optimized for iPad, for iPhone and for iPod-fast loading at full speed.(max 2.4A for iPad, max 2A for Android phone,max 1 A for iPhone / iPod.) Type:  100% band Car Charger Color: as picture LCD Digital Color: orange Output Interface: USB Input Voltage: DC 12-24V (Error of plus or minus 0.2V) Output Voltage: DC 5V (Error of plus or minus 0.1A) Outout Current: 3.4A Voltage Measuring Range: 5-25V Current Measuring Range: 0.1A-3.4A Compatible Brand: Universal Compatible Model: Universal Conversion Efficiency: 90%