LR is usually 1.5 - 2.0Ω's in resistance vice ~2.3Ω's for a regular, all depending on what brand of 510 you purchase. They run hotter and burn more joice, but usualy produce more vapor. Some LR will last a week and others a month, all luck I believe. I prefer the LR 510's over the regular 510 attomizers. I would get a couple of each to try yourself. Some good places are Cignot, LiteCig, Madvapes, RockyMountainVapor, Nhaler, and many others I haven't even mentioned. 510 threading is very popular and common, most vendors have them at varying price points varying around $7.