Millermatic 255 vs Unlimited 200

Same fields. Each cell is that model's published text. A blank stays "Not published by manufacturer." The outlet chip does not hide either column.

Spec	Millermatic 255	Unlimited 200
Process	MIG (GMAW), pulsed MIG (GMAW-P), and flux-cored (FCAW). Source	GMAW/FCAW, SMAW, and GTAW. Source
Output amp range	20–350 A. Source	120 V: GMAW/FCAW 30–140 A, SMAW 15–70 A, GTAW 15–90 A. 240 V: GMAW/FCAW 30–200 A, SMAW 15–170 A, GTAW 15–200 A. Source
Rated duty cycle	230 A at 25.5 V, 60% duty cycle. Source	120 V: GMAW/FCAW 40% at 90 A, SMAW 40% at 70 A, GTAW 40% at 90 A. 240 V: GMAW/FCAW 15% at 200 A, SMAW 15% at 170 A, GTAW 15% at 200 A. Source
Input voltage and plug	208–240 V, single-phase. Auto-Line 208–575 V, single-phase. The quick specs do not print input amperes. Source	120/240 VAC, 60 Hz. Current input at 120 V: GMAW/FCAW 23 A, SMAW 22 A, GTAW 18 A. At 240 V: 32 A, 31 A, and 26 A. Source
Wire or rod size	Not published by manufacturer Source	Solid core .025 / .030 / .035 in. Flux-cored .030 / .035 in. Wire speed 80–400 IPM. Spool capacity up to 12 lb. Source
Weight	Machine only: 84 lb. (38 kg). Machine with running gear: 148 lb. (67 kg). Source	Not published by manufacturer Source
Material thickness	Not published by manufacturer Source	Not published by manufacturer Source