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https://www.instagram.com/takao21606/ buy electric parts here http://stores.ebay.com/pic-hitechworld Arduino modules, transistors, LEDs, ICs, radio parts, neon lamps A new LED lamp I made! 2x 3W chips, MT3608 booster, lithium battery from mobile phone power bank, USB charger TP4056. Using a wifi speaker globe as diffusor! It works quite well and the battery lasts about 24 hours.