TN-30 XM-L2: U2 1C
http://www.ebay.com/itm/New-Launch-ThruNite-TN30-CREE-XM-L2-U2-1C-LED-Flashlight-Torch-Camp-3600lumens-/330855751775?pt=US_Flashlights&hash=item4d088a205f
TN-31 XM-L2: U2 1C
http://www.ebay.com/itm/New-Launch-Thrower-ThruNite-TN31-CREE-XM-L2-U2-1C-LED-Flashlight-Torch-1376Lumen-/330855685074?pt=US_Flashlights&hash=item4d08891bd2