TCS #1479 KAM4-LED 4 function, LED-ready, hardwire decoder with a built in KA-2 Keep-Alive

TCS #1479 KAM4-LED 4 function, LED-ready, hardwire decoder with a built in KA-2 Keep-Alive 4 function, LED-ready, hardwire decoder with a built in Keep-Alive™. The built-in KA2 Keep-Alive™ will keep your locomotive operating for 6-15 seconds without power (dirty track, bad contact, etc. etc.). The onboard current limit resistors connected in series allow for LED installations with NO EXTERNAL RESISTORS for F0F, F0R, F1 or F2 (Use the standard KAM4 if your locomotive already has series connected current limit resistors for LED's)! Included is our auto-adjusting BEMF for outstanding slow speed performance. Also includes Quiet Drive for super quiet engine performance. Dimensions: 0.945" x 0.66" x 0.33" or 24 mm x 16.7 mm x 8.38 mm