The M3 isn’t that good. Good quality, very bright but that is very short lived. The temp limit is too low and the brightness drops from 100% to a low 30% without anything in between
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.
wow, xhp 90 is out, this is first i hear about it, i must get out more.
s. i wonder if cree knows they make xhp90 led, cuz it is not anywhere on their site
Your sarcasm was well received alpg88. As P.T. Barnum said, “There’s a sucker born every minute”. My post here wasn’t my first stroke of ignorance either. I requested a refund from the user on Ebay and included the specifications of 9mm for the ghost Cree XHP90. I included an image of my led with a micrometer display showing 7mm and explained the “XHP90” should measure 9mm. I feel like an idiot however, the good news is that my insistence on the CREE XHP90’s existence won me a refund. you have to fight fire with fire. lol https://www.ebay.com/itm/184004426295
i was not really sarcastic at first, at first i even thought they really made the led, then i started looking for datasheet, and then i realized it was just a name of none cree led.