Binding of Isaac: Rebirth Wiki

(in Afterbirth † and Repentance)

Dim Bulb is a trinket added in The Binding of Isaac: Afterbirth †.

Effects[ | ]

Notes[ | ]

  • Dim Bulb is more than twice as powerful as Vibrant BulbVibrant Bulb; however, its effects are active less frequently.
    • However, 1 room charge items can be used at the start of each room to effectively get the Dim Bulb's effects constantly.
  • Items that charge automatically will get only a tiny moment of benefit from the Dim Bulb before they gain more charge again.
  • (except in Repentance) Items with no charge bar like Collectible How to Jump iconHow to Jump will activate Dim Bulb's effects permanently as long as the item is held.
  • Dim Bulb has no effect when no active item is held.
  • If Isaac has 2 items (via Collectible Schoolbag iconSchoolbag), only 1 of them needs to be empty to receive the benefits.
    • This appears to have been patched out on PC. (except in Repentance) However, if one of your two active items has no charge bar (e.g. Collectible Remote Detonator iconRemote Detonator), you can swap to it after using the charged item to preserve the Bulb's effect.

Synergies[ | ]

  • (in Repentance)Collectible 4.5 Volt icon4.5 Volt: Dim Bulb will be active for as long as the active item has less than one bar of charge.
  • Character Bethany iconBethany / Character Tainted Bethany iconTainted Bethany: The effect remains active with both soul and blood charges.
    • If the active item is fully charged only with soul/blood charges and no regular charges, Vibrant BulbVibrant Bulb can be active simultaneously with Dim Bulb.
  • (in Repentance)Old CapacitorOld Capacitor: As long as the active item uses charges, Dim Bulb can be held active indefinitely.

Interactions[ | ]

In-game Footage[ | ]