SMD DT0605RW DIMENSIONS ONLY: mm.1,6 x 1,5 TWO-TONE DIGITAL DCC FEATURES and TECHNICAL SPECIFICATIONS and FUNCTIONAL: - WIRING: complete with 3 INSULATED cables of 20 cm c / a already WELDED and cathode (-) then by connecting them in 1 direction they turn on - IDEAL FOR: LOCOMOTIVES, TRUCKS, AIRCRAFT, CARS, HELICOPTERS - IDEAL USE: RED / WHITE FRONT / REAR AUTOMATIC LIGHTS POWER SUPPLY: Max RED LED voltage without resistance: 2V using the same as the TRACKS / MOTOR, it is necessary to INSERT in SERIES on the COMMON NEGATIVE cable of EACH SMD MICRO LED a very normal resistance from: 600 to 1000 Ohm 1/4 of Watt higher values you will obviously have a more light output LOW !! - PLATE MEASURES: mm. 1,6Lx1,5P - CABLE DIAMETER: MM.