Not working after 2 uses. -- NO ATTRACTIVE PACKAGING: The flash body is actually a transparent heat shrink tube. The photo on the website shows the bare circuit board, but it actually has a clamped battery at the bottom, the circuit board on top, and is surrounded by thick, clear heat shrink tubing. -- WHEN IT WORKS SO BRIGHT IT PAINS: You can't look at the flash because it's so bright it hurts when your eyes try to adjust to the brightness. I didn't measure the brightness, but it needed to be…