- Joined
- Aug 25, 2010
- Messages
- 533
- Points
- 63
Hi to all the forum.
Sometime ago I have bought from China this device:
Mini Laser Luce Effetto Lighting Proiettore per DJ Disco Stage Party Show Club | eBay
It was at 1/3 of that price, but after 2 working hours, the power supply starts to emit strage sounds and then popped.
I substitute the original broken alim with an old power supply, more powerful (2.5A instead 1 but at the same voltage). After few seconds the device burned. So I decide to bought another device from Germany thinking to receive a better alim, but I received the same power supply. Now the device works, but the alim starts to emit the same disturbing sounds.
So, I do not know if the first device was damaged by the popped alim, and I do not know if this device needs to be current limitated and want only 1A and not 2.5, but now I'm scared to kill another device.
I wish to know if a device originally powered with a 1A alim can work safe with a 2.5A one.
Also, I do not know if under load the 2.5A alim shows different performances from the 1A one, in terms of current and/or voltage.
The only test that I have done was to connect a multimeter to the 2.5A alim and leave it working for 12 continuosly hours: the voltage output is stable at 4.8V, but remember that it is not under load.
What is Your opinion? What kind of tries I must do to confirm the goodness of the 2.5A power supply?
Sometime ago I have bought from China this device:
Mini Laser Luce Effetto Lighting Proiettore per DJ Disco Stage Party Show Club | eBay
It was at 1/3 of that price, but after 2 working hours, the power supply starts to emit strage sounds and then popped.
I substitute the original broken alim with an old power supply, more powerful (2.5A instead 1 but at the same voltage). After few seconds the device burned. So I decide to bought another device from Germany thinking to receive a better alim, but I received the same power supply. Now the device works, but the alim starts to emit the same disturbing sounds.
So, I do not know if the first device was damaged by the popped alim, and I do not know if this device needs to be current limitated and want only 1A and not 2.5, but now I'm scared to kill another device.
I wish to know if a device originally powered with a 1A alim can work safe with a 2.5A one.
Also, I do not know if under load the 2.5A alim shows different performances from the 1A one, in terms of current and/or voltage.
The only test that I have done was to connect a multimeter to the 2.5A alim and leave it working for 12 continuosly hours: the voltage output is stable at 4.8V, but remember that it is not under load.
What is Your opinion? What kind of tries I must do to confirm the goodness of the 2.5A power supply?
