The nek'sed, or lightning cannon, was an energy weapon developed by the Goa'uld Empire. It was a two-pronged device the size of a Death Glider cannon. The nek'sed was attached to a portable Naquadah generator. When activated, the device hummed and electrified the air between the two prongs. When firing, a blue arc of electricity fires from the end of the cannon and would strike the target location with such a massive amount of energy that even the toughest of Jaffa would be killed.