How can I Make Sure My Power Device Doesn't Blow Out?

player piano

Episode 1743

Dan from St. Petersburg, FL

Dan converts regular pianos into player pianos for a living. He wants to know how he can make sure he isn't drawing too much amperage or wattage and damage the power device. How can he prevent that? Leo says that in general, a power brick won't work if it doesn't match the wattage. Leo says that watts are volts times amps. So watts are where he'll want to be careful. So take the volts and multiple by amps, and see what voltage it can take. Both should be on the power supply or adapter.  

What power adapters do I need for traveling overseas?

Ckitze USA to Europe Travel Power Plug Adapter

Episode 1261

Patrick from Fallbrook, CA

Patrick is going to be traveling to Ireland and he wants to know how to adapt to the power over there with his technology. Leo says that there are adapters that he can buy which fit into the outlets in that region. They're pretty cheap. But the other part of the story is voltage. The US uses 110 volts, while the rest of the world uses 220 or 240 volts. That's twice the amount. So there is a risk of frying it. Most of his chargers are 120-240 volts. Patrick should look on his AC adapter, as it should say so on it. If it doesn't, Leo says he shouldn't bring it.