For the Gerber I would suggest brightguy.com or batterystation.com. For the Elektrolumens I think you would have to order direct from Elektrolumens.com. Another 3AA option that is close to the Gerber but a little less output would be the Streamlight Tasklight Luxeon 3AA which is also available at brightguy.com. I have seen the Streamlight at my local Bass Pro shop.