Power adapter of my router is broken. I tried power adapters I have but their power aren't enough for my router.
Router requires 12V 500mA. So I thought to buy one from eBay and I found this for cheap

I would buy even an expensive one if i need, But in these days my financial status isn't good so I can't spend more money. If not I will buy one even for 10$. I am not greedy for money.
http://cgi.ebay.com/US-DC-12V-1A-Switch ... 3f082b7d77
But it's 12V and 1A.
So my question is,
Is this safe to use with my router? because this is 1A and it's double than what router requires.