In my opinion LED is greater than HID and Halogen and RIGID Industries is greater than all the LED manufacturers. The benefits to LED are smaller package, brighter light, less power drain on your system. The Rigid Duallys only draw 1 amp or something like that. The con of LED lighting and specifically Rigid is they are expensive. You can get a pair of Dually Spots for like $180, IMO is worth it for what they are. most any vendor on the forum can get you a set.
Duallys (Set of two)
I am not a representative of Rigid, just a fan. I have a pair of Spots on my A pillar and a pair of floods on my tailights facing back.