You have not mentioned polarity of LED's and not clearly defined connection in series/parallel and rating of adopter also. Can't say this is informative Vedio.
Since resistors are in parallel,all will consume the same voltage....so instead of using the resistors and power adapter,if I connect 3 V coin cell say 2032(since it will fit nicely within the casing),will it work or current becomes insufficient?
No,not good, the coin cell will go dead in a few days; a CR 2032 only has 100mAh; 12 small leds like that consume ~~ 12 x 5 mA, or 60 mA; so,i'll rephrase that,the coin cell will only last a couple of hours.; (they can last 10 years in a watch,because it only consumes in the micro Amp range).
At first Li-ion battery is not 1.2 volt, it's 3.7 volt.... It's charging voltage is 4.2 volt and deep discharging voltage 2.7 volt.... Don't try to charge Li-ion battery no more than 4.2 volt... Charging with higher voltage, the battery may explode, causing serious injury.....
Charger mat lagao. 0.22uF 400V ka polyster capacitor ke series me saara LEDs laga do. Charger ka jhanjhat khatm. Bahut achhi light hogi. LEDs front to back pairs me lagenge. Yaani 6 pairs series me honge. Direct AC mains se chalega aur ek LED dusre LED ko protect bhi karega.
myi frieend take you i likeed your video i dont spake inglish sorri ......yo tengo una idea de un reloj perpetuo con un simple circuito electrico 2 barerias 18650 y un reley de 5 p seria ideal para tu video