0-320V Output All Sizes LED TV Tester,Multipurpose LED Lamp LED TV Backlight Tester for All LED TV Repair and All LED Application Designed to SAFELY and ACCURATELY TROUBLESHOOT A VARIETY of LED TV BACKLIGHT PROBLEMS.Very useful when troubleshooting LED bulbs, especially when it starts flickering.A good and useful tool for every technician who repair TVs and all LED application.When testing,if voltmeter reading is abnormal,means there is something wrong with LED lamp.Otherwise it is other reason. Input voltage :85V - 265V,output voltage :0V-320V,working current:22mA.At the same time,this LED Lamp LED TV Backlight Tester can test below values:Permissible voltage of capacitor.Regulated voltage of zener diode.Voltage of LED beads and LED panel. High brightness and safety against electric shock.No sparking when test pen is short-circuited.Intelligent adjustment of output voltage and current against electric shock .A practical tool for checking LED TV backlight problem at any size without burning LED beads and LED panel.Save time!Save money! Safer with dual protection of power and tester Isolation.Pocket size which is very convenient for on-door appliance. This is a unique and patent product which is developed by our engineer.So please dont compare it with other cheaper ones.We offer you 100% risk-free satisfaction guarantee to let you buy with confidence. No questions asked. So, why think twice? ORDER NOW to get this amazing LED Lamp LED TV Backlight Tester.