Light Heatsink is a battery in Destiny 2 that can appear on 12 weapons. There is also an enhanced version with a stronger effect.
What Light Heatsink does
Lightweight, agile battery. Increases handling and vent speed.
Enhanced version
Lightweight, agile battery. Increases handling and vent speed.
Weapons that can roll Light Heatsink (12)
HeirloomSolar · Combat Bow
All or NothingStrand · Pulse Rifle
Bitter EndArc · Machine Gun
Compact DefenderVoid · Sidearm
Conspiracy HonedStasis · Sniper Rifle
High TyrantVoid · Pulse Rifle
M-17 "Fast Talker"Stasis · Submachine Gun
Modified B-7 PistolStasis · Hand Cannon
Uncivil DiscourseArc · Hand Cannon
Vikala SMG4Void · Submachine Gun
Voltaic ShadeArc · Scout Rifle
Zealous IdealSolar · Auto Rifle