Force lightning could also be absorbed and redirected by a Jedi of sufficient skill; Yoda demonstrated this ability by both deflecting and absorbing the dark power during battles with Darth Sidious and Tyranus, using nothing more than his own two hands.
Yoda is the only person seen to defend himself against Force lightning without a Lightsaber, as he captured Count Dooku's lightning in his hands and re-directed it back at him.
Jedi Code forbids Jedi from using Force lightning because to conjure it, one must seek strength that would put them in danger of falling to the Dark Side.
A Jedi and Sith could deflect the lightning with a lightsaber, such as when Obi-Wan Kenobi blocked Dooku's lightning with his saber; a powerful Jedi Master such as Yoda was capable of deflecting the attack using Force deflection but only for a short while and with immense effort.
Force lightning can be deflected and absorbed by a lightsaber, and select Jedi have proved able to neutralize the technique through the power of the light side.
Darth Vader can not use force lighting, because of his severed arms. Robotic hands can't summon the force lighting. However Darth Vader can still use other forms of the force, such as force choke.
Originally Answered: Could Darth Vader block force lightning like Yoda could? No he'd be able to block it with his lightsaber like Mace Windu or Obi Wan Kenobi, but not with a palm force ability like Yoda, at least based on what we know.
Vader relies on the complex life support system of his suit to survive and it happens to be very vulnerable to electrical discharges. So, if Vader ever had unleashed Force lightning, there's a good chance it would've caused his suit to short circuit, thus, killing him.
Some of Yoda's abilities with the Force are well known, like the fact he learned how to become one with the Force so he could become a Force ghost after passing away. Another ability most know is that he can absorb and deflect Force lightning, a power he used when dueling both Count Dooku and Darth Sidious.
Gray Jedi commonly demonstrated their skills with both Light and Dark side Force capabilities. For example, the capacity to construct a lightsaber from scratch, along with unique Force talents such as Force lightning.
It's likely Kylo never learned how to summon Force Lightning
From what we learned from the Marvel Comics story on Kylo Ren and his upbringing, along with the information explained and even alluded to in the sequel trilogy — it's entirely likely that Kylo never completely learned how to harness Force lightning.
Grandmaster Yoda himself was capable of summoning force lightning in the form of Emerald Lightning. Galen Marek was an extremely skilled user of this Force power, even after his conversion to the light side, rivaling Darth Sidious.
1 Darth Sidious
There has been no Sith, as powerful, meticulous, nor as evil as the Emperor himself, Darth Sidious. As previously mentioned, Sidious trained in the Dark Side by Darth Plagueis before Sidious killed Plagueis in his sleep, making Sidious a Sith Master.
16 Emperor Palpatine
Emperor Palpatine, also known as Darth Sidious, is not only the first Star Wars character to use Force lightning onscreen, but also the ability's deadliest practitioner.
Armor forged of beskar could withstand blunt force, strikes from a lightsaber, and repeated blasterfire, though the force of the impact still transferred in part to the wearer.
Despite being a powerful user of the dark side of the Force, Darth Maul never used Force lightning in any of the Star Wars films or shows. Despite so many dark side characters using Force lightning in Star Wars, Maul never used it any of his appearances on the small or big screens.
Yoda's Lightsaber Form Hints He Was Vulnerable To The Dark Side - IMDb. With the various forms of lightsaber combat in the Star Wars universe, the form that Master Yoda employs suggests of a possible weakness to the dark side's sway.
Yoda is an expert at turning defense into attack, using the Force to absorb blaster fire, heal his wounds, and protect him from harm while using his lightsaber to inflict damage.
Yes he has. What he used was a variant of force lightning called “Emerald Lightning” which is supposed to be similar to Plo Koon's “Electric Judgement”.
Weakness: Electricity
Darth Vader possessed the skill to use Force lightning, but the limitations of his suit prevented this. A lot of the systems that were keeping Darth Vader alive were maintained by electricity, which is why Force lightning was so destructive towards him.
So, all Force users had the inherent ability to use the power. Yes, that meant that Jedi could use the Force choke too.
Given Rey's lineage as Palpatine's granddaughter, it is also reasonable to assume she is already better attuned to using Force Lightning than the average Force user, with Ben telling Rey that she has all of Palpatine's power within her at the beginning of The Rise of Skywalker.
Electric Judgment, also known as Emerald Lightning, was a Force power used by the Jedi to spray electric bolts of variable intensity from the hands and fingers.
In both canon and Legends, Jedi will sometimes use red-bladed lightsabers in emergencies where they're missing their lightsabers and a Sith weapon is the only one available. Some Jedi are explicitly shown using red lightsabers in Legends, however.