From the appearance of the light, it resembles the construction and style of a 2AA 3W light that I purchased from AXShop.com. Although some found the workmanship poor on their samples, mine was very well built. Good machining, finish, and tight bright beam.
No threads were glued.
I believe it's also marketed under the SMARTFIRE name.
The Blimp is more than likely a 3W light that is overdriven. The 7W rating is misleading. As it is the overall power drain measured at the batteries, which include the power loss through the resistor. Or, it's just an outright lie.
I don't think it's possible to get 7W at the LED from 3AAA.
It should be as bright as any 3W Chinese made light, but the runtime will be short from 3AAA.
I originaly paid $13.00 USD for my 2AA version. So, my opinion is that $19.XX for this model is not a very good deal. There are many other options at this price range.