Black Lightning is a bald African American male. He wears a black and blue unitard with lightning motifs, blue sleeves, black pants and black shoes. He has also worn a costume with shorter pants and blue and yellow sneakers with no socks.
To hide and/or protect his eyes, he wears small goggles with yellow lenses.
By 2018, he has regrown his hair and gained a beard. His costume is also slightly altered and has traded his goggles for orange sunglasses.
When the Collector of Worlds trapped downtown Metropolis, Jeff was in Suicide Slum, also inside the sphere. He tried contacting the Watchtower, to no avail. Zeta-Tubes were offline too. He could get contact with Batgirl, who was also trapped.
When magnetic field disruptors planted by the Reach threatened the Earth, Black Lightning joined 39 other heroes of Earth in a briefing in Metropolis. The heroes would use a computer virus provided by Lex Luthor to safely disable the disruptors. The heroes were paired off with another into twenty squads: one member would run interference against weapons guarding the disruptors, allowing the other to get close enough to plant the virus.
Black Lightning was assigned to Delta Squad, and worked alongside Virgil Hawkins to defuse a disruptor planted in the sewers below Dakota City. He distracted the Beetle-tech drones, allowing Static to plant the countermeasure safely. When his young partner expressed a growing fondness for the hero life, Black Lightning complimented him on his natural aptitude, and offered his services as a mentor should Virgil ever desire one. A few minutes after their success, all squads had succeeded in their mission.
When the Team was summoned to the mission room for a face-to-face meeting with members of the League, Black Lightning was among the leaguers present. Batman informed them that they would now operate side-by-side with the Justice League from the Watchtower. Not because Mount Justice was destroyed, but because they earned the right to do so. The League then left the Team to its own devices.
Powers and abilities
Electricity generation: Black Lightning is able to create bolts of black electricity from his hands. They are capable of harming fellow electricity manipulators such as Livewire. 
In the comics, Black Lightning is Jefferson Pierce, one of the first African-American heroes. He was a teacher in Metropolis's Suicide Slum, a member of Batman's Outsiders, and after a term as Secretary of Education under Lex Luthor's presidency, he joined the Justice League. The uniform he has here resembles the one he wore when he was with the Justice League.
This is his fourth animated appearance; he previously appeared in Superman/Batman: Public Enemies, Batman: The Brave and the Bold and Justice League: Crisis on Two Earths. He was planned for inclusion in Static Shock, but legal issues caused the character to be changed to "Soul Power".