Health and Ammo Crates give you Lobber Ammo
Green Eco (ammo) is used as Lobber ammo. The lobber is the green eco mod. The green mod replaces the dark mod. The lobber drops small green-eco grenades. Jak obtains the Lobber mod in Keira's workshop onboard the Phantom Blade, after finding Light Eco at the Abandoned Research Rig. The Lobber fires a single Green Eco grenade in a forward arc. The grenade remains in place until touched by an enemy - after it is touched, the grenade explodes and deals heavy damage. The Lobber works great against small groups of enemies.