100-240v 50-60hz laptop ac adapter 1.CE,FCC,Rohs 2.over current,short curcuit protection ... or Machine; cctv camera ,security products, tablet , ipod , notebook , laptop adapter ,led light , led stript , led products . lead acid ... low voltage, no bad led indicator, low ripple, with right cables , no bad ultrasonic bonding, etc6.Visual ... 100% full load burn-in test for 1 hour, doing shock test per 10 ...