GE THQL1120DFP Single-Pole Dual Function Arc Fault/Gfci Breaker, 20 AmpHighlights: Type: THQL Amperage rating: 20 Voltage: 120 volt Dimensions: 3. 3" height x 1" width x 3" depth Single Pole Dual Function Detects when current is "leaking" somewhere outside its intended path Should the DFCI trip, the yellow LED Indicates the last known trip condition by illuminating LED for 5 seconds each time the DFCI is turned on for up to 30 days Self test feature UL Listed