The model # is 225285, but unfotunately that isn't enough to go on. That is the same model # they used on the previous version of this light, which wasn't nearly as good a beam, nor was it nearly as bright. I beleive the old one was a Luxeon bulb, where the new one is a Cree. The giveaway that you have the right light is the packaging. The new one says "60x Brighter", where the old version (with the same part #, for reasons unknown to me) says "30x Brighter".

Here is a picture of the light in it's packaging:


As you can see, the "60X Brighter" is plain to see if you're in the store. I don't know how you'd go about ordering one online and making sure you got the right light.