What is the light range on it?
I could not say for sure the light range ... but I can say that this is one of the best back up lights you could ever carry ,,, and you can use it for a primary as well ... it is so much better than the 79 dollar princeton lights it is not even funny ... this is one of the best underwater lights available for the price ...
I have three ...
Very powerful for a small light, just guessing.... approximately 50'. Although, this is in a cavern. Have not used it on a night dive.
Dont remember the details but should be 8-10 ft easily
The light does very well as a spot light. It has a rather narrow beam and suits my purposes well.
How ever ,the clearity of the water plays a large part in the depth of penetration
of the beam. It does very well for me.
Not great, if you can afford an LED, it is worth the extra money.