My first mod, but which driver??

I've just swapped the Q3 for an R2 in a romisen RC-A4 and its a little better

I now want to swap the driver as it only seems to be putting out about 60-70 lumins on a single cr123 primary.

I still want to stay with non rechargable cells so which driver would be best for me?

I'm a little confused about all the drivers avalible :shakehead It needs to be 15mm although i could trim a larger one.
I think i need something in the 2.7v-6v range and maybe 1000mA output like this one http://www.dealextreme.com/details.dx/sku.25518

Any advise would be great, thanks guys!

offroadmick said:

I think i need something in the 2.7v-6v range and maybe 1000mA output like this one http://www.dealextreme.com/details.dx/sku.25518

Click to expand...

This driver is a 7135 based buck one and only works well with 3.7 to 6V batteries. With two batteries it should work fine.