This is a Dual E-Switch for JR/HIT/Z Radios by EMS FEATURES: Lightweight Design Control Two Functions with one Radio Channel. Each Output is rated for 5 continuous amps and up to 30 volts. Each Output can be configured for Momentary or Latching Mode. INCLUDES: One E-Switch Unit One Length of Solder One Instruction Sheet REQUIRES: Soldering of Wires to Unit SPECS: Length: 1.5" Width: 1.5" Height: 0.75" Wire Length: 11" COMMENTS: Negative of battery gets soldered to two center hole on the board. Positive wires from function (Motor, etc.) get soldered to the holes closest to the MOSFETs. Momentary mode means function will be ON while the radio stick is away from center. When stick returns to center function will turn OFF. Latching means function will turn ON and remain so when stick is moved from center. Function will turn OFF when stick is moved again in the same direction. Unit is basically an ON/OFF switch that is controlled by the radio stick. It would be similar to having extra switches on the radio itself. Unit is NOT proportional. If either output of the Dual E-Switch is used to control a motor, install a diode (1N4001) between the motor and the terminals. jmm 6/1/02 ir/kh