Most Mods feel light to me (Big Strong Yorkshireman). It's easier to name Heavier Mods like the Original Hadron or the Titan. The Dovpo Odin is also Heavy-ish. I would say the Vaporesso Gen, the older models as not tried the newer ones but will probably try and get hold of the New Gen 200 when cash permits. I also find the Geekvape L200 (Legend 2) quite light. What weight do you consider being light ?. The Wotofo Profile Squonker is very light, A Single Battery Squonk that can be used as a Dual 18650 plus it's quite small as well.