I bought 'DC-DC Step Down Buck Converter 7V-24V to 5V 3A USB Output' it was working fine and now its not working now.
There is no technical details or circuit diagram of the circuit is given so that i will trace the defect even no inbformation of the manufacturer is shown. To whom I should ask all these details??
This is poor service given by ebay. I hate this. I will always prefer indian manufacturere for this. Atleast they support us technically.
