I don't own the original H501 so not sure how the Rebel compare with the T. Compare with the H51Fw I have though, they have about the same brightness (see the pic in my last response).
Hum... interesting. Now I wonder what's it's CRI number / lumen number / K number are. At close range it looks just as bright as my H51Fw, if not brighter:
(New H502c on left, old H51Fw on right)
Just got my fourth Zebralight, the H502c in the mail:
... but I don't recall that's how the Luxeon Rebel looks like? Did the Luxeon Rebel high CRI change its package?