1) 445nm: 1W - 5W with divergence at 2mRad and 3mm beam diameter for all power levels.

2) 465nm: 1.4W - 3.5W with divergence at 2mRad and 2.5mm beam diameter for all power levels.

1) Does this mean that for a particular wavelength they are using the same diode but at different driver power levels? Or is their description a generic one for simplicity's sake? I notice as a general rule as power increases, the divergence and beam diameter increases for a given focus - at least for 445nm?

2) Assuming (1) above is correct, this means higher power does not necessarily translate into higher beam intensity as the distance increases, say 1/4 mile distance or more?

Anyway, I am looking for a blue laser as the title says.

Thank you for your help.