Review on 🔌 DC-DC Buck Voltage Converter: DROK Adjustable Step Down Voltage Regulator with LCD, USB Port, and Protective Shell by Ali Lariosa

(Модель 5А с Shell - 75Вт)Настройка.Вход: Блок питания для ноутбука (HP 19.5v , 3.33amp) Максимальная выходная мощность 64.9ВтВыход: Aukey CC19 автомобильное Charger. Rated power 54W max (4 USB ports). This should load 4 power supplies simultaneously (4x10W). , 3.5 amps = 42 watts. 4 power banks were connected to the Aukey car charger. each pattern 10 watts = 40 watts max. After 2 minutes the room filled with smoke as the Buck components began to burn. Summary. Worked well with light loads (20 watts). but started to burn at 40 watts (although the power was well below 75 watts). Update: February 20th, 2017 Drok Support suggests that "burning at 40w is normal operation" for a 75w device. (Except for individual cooling) No overheating protection! (obviously) In my case, the burn started about 20 seconds! Please be careful with this device!