@Brisirg
Right now, either Samsung 30Qs or LG HG2s from Illumn. I also use an e-cig, so they take turns in matching pairs, wearing them out faster.
I find that the LG HG2 has more power but drains quicker, while the 30Q has less power but lasts longer.
I get about 6-8 packed joints or 8-12...