This is the Single Onboard Glow Driver from Sullivan Products.

FEATURES
Automatic operation: ignites plug below a user-settable position
Quick and easy one-button set point programming
Ignition set point is permanently stored in memory until changed
Push button override ignites plug regardless of throttle
Green LED light indicates burned out plugs, bad connections, or dead battery by flashing on the panel
Does not require a Y-harness
Plugs right into the receiver, throttle servo and to any 1.2V to 12V battery

INCLUDES
Electronic onboard glow driver for single cylinder engines

REQUIREMENTS
Installation

SPECIFICATIONS
Weight: 34 g