I bought one of these a few weeks ago from another vendor who claimed he was selling me an XHP90 for $22.00. After receiving it and measuring the LED it only measured 7mm. I cannot find a comparison photo so I don’t know if I was sold an XHP70, SST70 or something else. Tail cap current only measures 1.7volts.
It would be nice to know if I could stack a resistor or two so it doubles as a hand warmer. It has an underutilized AOD480-30V N-Channel MOSFET.