how to power a 30w high power led?

i order a 30w led from ebay but i dont know how to power it

can i use just a 16v 2a power adapter or hove i to buy a led driver

here is the led:    

gjm7 years ago
You can get some very resonably priced drivers online. Try these two sites that I use.

Dealextreme is in Hong Kong and shipping is always free; but, it may take several weeks to get your goods. I have ordered from them many times and have always got my order though so I think they are great.
SatisLED has good pricing but you have to pay for shipping. I have not ordered from them yet as I just recently discovered them but they have great prices also.
frollard7 years ago
funny, the first result for 'power led driver' is

use that.
There was another similar question here in April
lemonie7 years ago

You need an LED driver.
What spec's for this thing?