Lambo's Horns can absorb, store and release electricity it in a burst. While present Lambo has yet to notice the power, and can only release the lightning stored in his horns when his fear reaches its climax. Adult Lambo uses the lighntning stored to perfrom techniques such as Elettrico Cornata.
25 year old Lambo, at some point lost these horns and had to use a replacement. But, during his fight with Leviathan, he found it, and declared that he can finally fight at full power.