BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Grey

Important Tips:

The inverter is not a battery backup it is a conduit from the car battery to your electronic devices. This power inverter comes with a car cigarette lighter plug and a pair of alligator battery clamps, very convenient indeed for plugging into car's cigarette lighter port or connect it to your car battery directly, And easily changed by unscrewing terminals with fingers.

Please noted that the built-in fan would do starts run very slowly once flipped the ON/OFF switch to ON, even though under no loads. The fan has 4 gears of rotating speed can be self-adjusted by temperature and power loaded increasingly. This running fan slowly means the inverter is working normally because this new design is to avoid misunderstanding by some buyer's thoughts the inverter is not working or defective if the fan is not running or very quiet when powered and under no any loads. On the other hand, it also less too much noise with running fans slowly.

Be aware of your car's fuses(Most is 15A), most car‘s 12v cigarette lighter port is fused at 150W, due to the battery output voltage is 10-15V, then formula P=UI(150W=10V(Min) x 15A), so you won't be able to pull more than 150W if connect with car‘s 12V cigarette lighter ports; unless you plug directly into car's battery.

It also has an on/off switch which is nice because you can just flip the switch to shut everything down without pulling the socket, The ON-OFF switch only works for the 3-prong plugs. The USB portion is NOT switched that are always powered on so long as the power source is there. You can use the USB charge ports all of the time with NO LOAD from the inverter.

BESTEK 500W PURE SINE WAVE INVERTERS designed for your devices that require careful protection, Fully applicable for all appliances under 500Watts, great for a laptop, speakers, camera, nebulizer, game console, kindle, iPad and other.Great also for pumping up an air mattress when going camping/glamping.

This inverter device replaces all of the 12V extra stuff with the standard 120V chargers, The USB ports reduce the number of 12V items to ONE, all from a single 12V power outlet (cigarette lighter) in the car.it can be permanently installed within the car to power PlayStation or screens.

The fit and finish are excellent. You should check the amperage output of your car alternator to be sure that it has sufficient capacity over the running requirements of your car. Check your specs before using this with bigger wattage units.

It gives no noticeable evidence of RF interference. Runs a TiVo, TV (modest-sized - ordinary), and BIPAP w/humidifier all quite well. It is also relatively lightweight and comparatively small.

Be sure to unplug or turn it off when you shut off your vehicle as some vehicles still allow charging even when the ignition is off.

The Instructions of LED Indicator status:

1. Green Lighted——Working

2. Flashing Green——Under-voltage or Over-voltage Protection

3. Flashing Red——Overload Protection

4. Red Lighted——Short Circuit Protection

5. Flashing with Red & Green Alternately——Over-temperature Protection or Fan Fail to work

6. Off——Not Switched on,Fuse Blown or Not Powerred