This Unique Tester Will Make Your Work Easier || Amazing Invention From LED & Diode

This Unique Tester Will Make Your Work Easier || Amazing Invention From LED & Diode Welcome to my channel "Technical Premier" here you will learn how electronics is work..Here you will also learn to make diy electronics circuits,handmade crafts,new inventions,mechanical,computer software..Here you will find lots of electronics projects and handmade circuits.. Friends in this video we will learn how to make polarity positive and negative line tester at home.. #tester #led #electronicsprojects #polaritytester I hope that, this video will be helpful for you..If you like this video then please share and like it and subscribe for more latest videos..