"It will be used for [1]bedside/self defence light and [2]long range use on nighttime walks."
[1]This would be a good application for this since I surmise that you will not use it very often. When traveling with my wife, I place my M2/P61 on her nightstand while I have the 9N (or 12ZM if I remember to bring it) on my side.
[2]This would not be a good application for it. The 2 CR123s will only last 20 minutes with the P61. Use the P60 for this, or, better yet, use a rechargeable if available to you. Even better would be a LED light and use the 6P w/P60 or P61 as backup.
With this reply, I've made the assumption that you meant long walks when stating "...long range."
If you meant that you want a light that has "...long range" reach, you'll need one that will provide a narrow beam. The P60/61 LAs have comparatively wider beams that limit their throw.