The L4 was one of the models of electroblades that were common before, during, and after the Great Galactic War

Great Galactic War Event Great Galactic War (3681BBY - 3653BBY)

, and was used by virtually every major faction during that period. The electroblades - also known as electroblade swords or techblades - were melee weapons that delivered painful shocks on contact instead of cutting or cauterizing like a normal sword or lightsabers. Rarer than the L3

L3 Electroblade Weapon Melee weapons

design, the L4 was different from other common electroblades, its A2 and A3 variants were equipped with conventional blades, allowing it to be used as a sword even when unpowered. The electroblade was widely used as a combat melee weapon by both the Imperial and Republic Armies, as well as by paramilitary groups and planetary defense forces.

Modifications
A1
A2
A3