![water imersion test water imersion test](http://www.steady-load.com/wp-content/uploads/2018/01/water-imersion-test.jpg)
Water Proof Test
The Charger is put under 1 meter water under the requirement of IP67, and there is no leak and work normally.
![vibration test vibration test](http://www.steady-load.com/wp-content/uploads/2018/01/vibration-test.jpg)
Vibration Test
The charger is able to work full power under severe vibration like condition on the car.
![low temp test low temp test](http://www.steady-load.com/wp-content/uploads/2018/01/low-temp-test.jpg)
Low Temperature Test
The Charger is able to work full power under -20℃ for 2 hours. And the product is able to work normally while put under -30 ℃ for 4 hours
![high temp test high temp test](http://www.steady-load.com/wp-content/uploads/2018/01/high-temp-test.jpg)
High Temperature Test
The Charger is able to work full power under 85℃ degree for 2 hours
![Conversion rate test Conversion rate test](http://www.steady-load.com/wp-content/uploads/2018/01/Conversion-rate-test.jpg)
Power Conversion Rate Test
The power conversion rate of the charger is required to be over 93%.
![EMC test EMC test](http://www.steady-load.com/wp-content/uploads/2018/01/EMC-test.jpg)
EMC test
The charged do not emit serve electromagnetic signals influence other devices.
![AC dropdown test AC dropdown test](http://www.steady-load.com/wp-content/uploads/2018/01/AC-dropdown-test.jpg)
AC Power Drop Test
The charger is supposed to work normally when the input voltage drop suddenly.
![DC precision test DC precision test](http://www.steady-load.com/wp-content/uploads/2018/01/DC-precision-test.jpg)
DC Precision Test
The voltage and current of DC output is tested. The max voltage deviation is 0.3%, better than QA standard of 1%. The max current deviation is 4.4%, better than QA standard 5%.