| DCCTrack Voltage | Lamp mA | resistor ohms at 1.2V | resistor ohms at 1.5V | resistor ohms at 1.7V | resistor ohms at 2.0V | resistor ohms at 2.5V | resistor ohms at 3.0V |
| 12 | 15 | 720 | 700 | 687 | 667 | 633 | 600 |
| 13 | 15 | 787 | 767 | 753 | 733 | 700 | 667 |
| 14.5 | 15 | 887 | 867 | 853 | 833 | 800 | 767 |
| 16 | 15 | 987 | 967 | 953 | 933 | 900 | 867 |
| 17.5 | 15 | 1087 | 1067 | 1053 | 1033 | 1000 | 967 |
| 12 | 20 | 540 | 525 | 515 | 500 | 475 | 450 |
| 13 | 20 | 590 | 575 | 565 | 550 | 525 | 500 |
| 14.5 | 20 | 665 | 650 | 640 | 625 | 600 | 575 |
| 16 | 20 | 740 | 725 | 715 | 700 | 675 | 650 |
| 17.5 | 20 | 815 | 800 | 790 | 775 | 750 | 725 |
| 12 | 25 | 432 | 420 | 412 | 400 | 380 | 360 |
| 13 | 25 | 472 | 460 | 452 | 440 | 420 | 400 |
| 14.5 | 25 | 532 | 520 | 512 | 500 | 480 | 460 |
| 16 | 25 | 592 | 580 | 572 | 560 | 540 | 520 |
| 17.5 | 25 | 652 | 640 | 632 | 620 | 600 | 580 |
| 12 | 30 | 360 | 350 | 343 | 333 | 317 | 300 |
| 13 | 30 | 393 | 383 | 377 | 367 | 350 | 333 |
| 14.5 | 30 | 443 | 433 | 427 | 417 | 400 | 383 |
| 16 | 30 | 493 | 483 | 477 | 467 | 450 | 433 |
| 17.5 | 30 | 543 | 533 | 527 | 517 | 500 | 483 |
| 12 | 40 | 270 | 263 | 258 | 250 | 238 | 225 |
| 13 | 40 | 295 | 288 | 283 | 275 | 263 | 250 |
| 14.5 | 40 | 333 | 325 | 320 | 313 | 300 | 288 |
| 16 | 40 | 370 | 363 | 358 | 350 | 338 | 325 |
| 17.5 | 40 | 408 | 400 | 395 | 388 | 375 | 363 |
| 12 | 50 | 216 | 210 | 206 | 200 | 190 | 180 |
| 13 | 50 | 236 | 230 | 226 | 220 | 210 | 200 |
| 14.5 | 50 | 266 | 260 | 256 | 250 | 240 | 230 |
| 16 | 50 | 296 | 290 | 286 | 280 | 270 | 260 |
| 17.5 | 50 | 326 | 320 | 316 | 310 | 300 | 290 |
| 12 | 100 | 108 | 105 | 103 | 100 | 95 | 90 |
| 13 | 100 | 118 | 115 | 113 | 110 | 105 | 100 |
| 14.5 | 100 | 133 | 130 | 128 | 125 | 120 | 115 |
| 16 | 100 | 148 | 145 | 143 | 140 | 135 | 130 |
| 17.5 | 100 | 163 | 160 | 158 | 155 | 150 | 145 |