Ty_Bower said:
Are you sure on that? Save the pic of the tail end of the light, and turn up the gamma in your photo editor. There is a clearly a button in the tail.
No Ty, I'm not sure. That's why I was careful to qualify my statement with "SEEMS to be". Actually now that I've taken another look at the photos, I'm more inclined to believe that it's a front twisty not a rear twisty as I had originally speculated. This photo:
http://www.dealextreme.com/productimages/sku_2096_5.jpg shows the light open from the front with the head inverted and the rear of the PCB board plainly visible. I would infer from this photo that this is how you are supposed to open the light to load the cell. This is consistent with a front twisty light. Also, this photo:
http://www.dealextreme.com/productimages/sku_2096_7.jpg shows the light alongside a AA battery for scale. The length of the AA cell isn't much shorter than the overall length of light that can be seen behind the lamp module. I simply don't see how there could be room to include a functional clicky switch and and up with a battery tube / tail switch assembly that is only slightly longer than the AA cell that it contains.
I do see what you mean about the button-like projection that is visible on the rear of the light. However, based on the other evidence, I think that is just a ringed indentation machined into the solid rear of the light to enable the use of a split ring and/or lanyard while still allowing the light to tail stand in "candle mode".