Luxeon lookalike LEDs

I bought a 5W LED from a Hong Kong supplier. It looks like a Luxeon, but is another brand.

There was no info included with it. What do I need to drive it? Someone said I needed a special supply which gave a 12V squarewave output to drive it most efficiently. Another said simply to supply 12V without a resistor. Another said I needed a resistor to limit the current. The only thing everyone agrees on (that I already knew) was that it needs heatsinking.

Can someone give me a definite answer on what I need to drive it? Its a ProLight 5W White LED PG1N-5LWS.

Any ideas guys?

It is usually respectful to at least TRY to find the answer to a question before asking it.
https://www.electro-tech-online.com/custompdfs/2008/08/5w_5LXS.pdf
Took me less than 10 seconds to find using Google and copy and paste from your post. Your entire post probably took longer.

Yes always Google before asking.

You can use a resistor but it's better to use a constant current switched mode power supply.

That bis the best Chinese datasheet that I have ever seen. No spelling mistakes!
Maybe they just copied the datasheet from Philips Lumileds.

audioguru said:

That bis the best Chinese datasheet that I have ever seen. No spelling mistakes!
Maybe they just copied the datasheet from Philips Lumileds.

Click to expand...

Or maybe its because they are just as professional