Powerfull led torch (770 - 1300 lumen) with 18650 battery
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x7 smd led: https://www.amazon.it/gp/product/B07BVTNS6Y/ref=ppx_yo_dt_b_asin_title_o06__o00_s00?ie=UTF8&psc=1 x1 button. x1 18650 battery. Cable for 220v ------------------------------------------------------------------------------- I use the led with all power of the battery because the led support 3.6 volt but is but it can be dangerous because the current consumption requires a high current passage, so it is mandatory to use a copper cable for 220, otherwise it would fire. If you would have less lumen ( for preserve the leds) and extend the life of your battery, you can add a resistance before every led. I use a old 18650 battery of my very old laptop. 3.7 ~ 4 v 2600 mah The torch should produce around 770 lumens, but I overloaded the power supply of the incoming LED at 1300 lumens. I have tested with my diy lumen tool ( is not much precise, sorry). The battery life is approximately : 45 minute ( but the battery is very easy to change ) 2600mah battery 2450ma leds consumption = 0,7428571429 ( If is incorrect you can warn me) after the print, you have to screw and unscrew it a few times to allow the excess plastic to be consumed in the screw thread.
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