Source for screw base halogen bulbs

[N4aeq]

I have several headlamps that use screw base bulbs.I would like to find a source of screw base
halogen bulbs.They are modified with power cord
and I have numerious rechargable packs of different voltages so most any voltage would be ok
I would like atleast .5 amp or better current thou

 

[Nerd]

Hmm what about the reflectors? Are they plastic? Can't get too hot lamps in case they melt...

 

[N4aeq]

I believe they are because they are 6volt head lamps & the bulbs are .5a,but i would like to try
it anyway.Ivr picked up alot of these @ yardsales
and plenty of cellphone battery packs from 3.6 to
7.2 v nicads,nimhs & lithiums.
Just looking to come up with a hi power rechargable headlamp.