Thanks for the replies so far, much appreciated.
It is a bit of a minefield picking the right one(s).
What is the bulb life like on the minimag and is the light output in the gives of a nice amount of light or turns night into day. I realise it wont be the latter but just an idea.
***The minimag LED "bulb" is a Luxeon III LED, and it is highly unlikely that it would fail in your lifetime. That is the beauty of LED's.
My budget is, well as little as possible I guess. One I can upgrade sounds ideal.
***If you already have a Minimag, or even a 2D/3D Mag, there are a bunch of "drop-ins" which could fill your needs. Everled, Terralux, Badboy, Madmax, etc. Some are pricey, some less so. Most of them perform extremely well.
Streamlight Pro Polymer Luxeon - what is the light from this like ?
***It is a very bright 4AA light. It has a bright defined central spot, with a wide spill. It throws very well, and has excellent runtime. It is noted to be a very tough light as well.
One idea I had was to buy a Mag lite and upgrade that. I understand you can buy adapters to use AA batteries in them. Where can you get these from and which mag would be the best size to get ?
***I am not sure I understand your intent. Are you saying you would buy a Mag 2D, and run it from AA batteries? That would be an odd way to go, based upon your above requirements.
IMO, you should further define your needs, starting with the absolute maximum you are willing to pay for a good light setup.
1. How much maximum are you willing to spend?
2. Incandescent or LED?
3. How much light do you need?
4. Beam type? (Flood, spot, etc)
5. What form-factor do you like? Metal? Plastic? Do you want it to fit into a pocket?
6. What type of switch do you prefer?
7. Alkaline, lithium, or rechargeable?
7a. if rechargeable, do you want "charge in place", where you drop the light into a cradle, or do you prefer to use batteries you charge, and place them into the light?
8. Does it need to be waterproof/resistant?
From there, we can assist in finding a great light!
I recommended the Mag 3AA based upon your attempt to balance brightness, budget, and ability to use rechargeables.
The Minimag 3AA is about $20. It will use alkalines, lithiums or rechargeables. This makes it very flexible.
Runtime is quite good. On alkies it goes nearly 3 hours to the 50% mark. NiMh should run a long time as well, and have flatter discharge.
It is long, but still can ride in a back pocket.
Mags are tough, reliable, and somewhat water resistant.
The beam is mostly a broad flood, with some of the beam weighted to center. It is a very nice walking light.
A set of 4 rechargeable batteries and a charger can run as little as $15.
For $35, you are set.