New model A02 LiPo 2S RCEXL CDI electronic ignition module for one cylinder Engine. CE and ROHS tested and approved. Please recognize all original RCEXL CDI should have a CE and RoHS label. Otherwise, it is not a RCEXL product. FEATURES: Computer control auto-advance pre-program timing control, Fit most of the RC gasoline engine. Single cylinder and twin cylinder engine application available Four different sizes of cap to fit most of the spark plugs. Fully shielded wire and case to prevent radio interference, Use 4 cell batteries pack (recomended). INCLUDES IN PACKAGE: Ignition module c/w 1/4-32" plug cap, 1 hall sensor with 1 bracket, 2 screws, shimming, battery cable, protection lining. NOTE: Use 4 cells Ni-cd or Ni-mh batteries pack (recomended). Recommended 1300mah capacity minimum. Always use resistor type plug to prevent radio interferences (include). SPECIFICATION: Input Voltage: 4.8-8.4 (LiPo 2S). Currant: 500ma average . RPM range: 900-18,000 . Output Voltage: 10-35 Kvolts. Weight: 120 gram. Module Working Temperature: -10 - 85ºC. Angle of Controlling the pre-ignition: 28-30 deg.