Well dear i have made so many testers and they are all working very well but my favourite one is oprateing by only 3.7 volt battery(Li-on 18650) and it's never gives shock its quite safe and it's so handy because of it has no 220V power cord . I have never buy from market but it has missing only volt meter . And by the way one thing i want to let you know that when you making your up coming video on this testers draw circuit diagram of this tester on paper so it will easy for us to understand and compare. Thanks
Good very useful circuit. Pl explain that how we can connect a saperste degitial volt meter instead of digital multimeter. As after fixing a saperste Digital bolt meter, this circuit will be a independent device Anil Kumar Goel
Dear har led me different setting hoti hen. general ya special setting hoti hy service menu me woha se hogi. china universal ki video share ki hui hy. aur smart tv me yeh option nai hoti
sir agar ek led kharab ho strip mei to kya teeno strip jalni band ho jayegi kya,ek aur sir ki jaise 8 led ho ek strip mei to strip kitne volt ki hogi kaise calculate kare
dear agar 1 faulty hui to us k sath series me jitni hen sab band hogi. aksar strip pe led voltage likhe hote hen nai to tester se check karen total voltage ko number of led pe divide kar len
