Pick up the Salvo 21w for nearly the same price you were going to pay for that Halcyon 10w light, and you'll be a VERY happy camper.
10w is great for caves, but gets kinda puny if you dive in low-vis open water. At least, by comparison to the 21w lights!
10w is great for caves, but gets kinda puny if you dive in low-vis open water. At least, by comparison to the 21w lights!