How to make a 12v 20w Led Light continuous use of 15 hours

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In this video i will make a 12v-20w Led Light continuous use of 15 hours at Home, Hope you guys will enjoy this !!!
How To Make Mini Spot Welder i Using in video :
- Parts that you need :
+ 12v - 20W LED Landscape Light :
+ 18650 Lithium-Ion Battery, i get From Old Laptop Battery Pack
+ 3S 11.1V 25A 18650 Li-ion Lithium Battery PCB Board With Balance Function:
+ Box PC Power Supply
+ Holder Battery :
+ Adapter 12v 2A:
Thanks for watching, Have a great day !
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