• Controls the Pro Mag 44's energy, such as the special long duration spark & quick rise time
• Magnetic pickup in the generator delivers the trigger signal & the Box takes care of the rest
• Provides extra endurance
• Recommended for races longer than 50 laps
• Requires 200-250 cranking rpm
• Length: 8.4"
• Width: 2.9"
• Height: 4"
• Weight: 7 lbs