How To Make Auto Volt LED Tester

hello.
Thank you for your wonderful video.
Why did you use 440Ω (two 220Ω) resistors?

if using a 1/2 watt resistor what size should it be?

Anlatım yok.

If using a 2 Watt resistor, what size should I use?

My Dear Brother Tariq , mera Umar hai 71 sal , magar avi vi saxam our energetic hun. Upki video follow karte huye Maine ea circuit banaya hai ? Lekin brother 220ohm 1w resistance bohut hi heat ho raha hai? Iski Waze mujhe samajh me nahi araha hai? Please help me with a fruitful solution.a lot of thanks for your video.

sir can we use MT3608 2A DC-DC Step Up (Boost) Power Module in instead of xl6009e1 module

What is the protection about short circuit of two propeller during testing led

Can i use this module xl6009 but including voltmeter inside ?

Why u don't put the schematic circuit?

This device can test ziner or not ?

Thank you for the lesson... it's a pity that there are no teachers in my country from who you can learn the "secrets" of this job... this assembly is the portable version of the led tester with transformer, presented by you on a lot? respect and consideration for you, Dan

Nice

Excellent
Thanks for sharing

muito bom