Same width, but EL has constant pressure not variable. Pressure is produced by the roller contact with the media and rollers are spring loaded so pressue is even across the nip and constant, cannot over pressure. With 54 BASE you can add more pressue by turning the pressue wheel, with 54 EL once the roller engage, pressure comes from the spring system, so even if you try closing nip more, same pressure.
Also, no heat assist, cold laminating only. Meant for SIGN shop applications such as applying application tape, simple mounting to foam ect. or placing Lam on vinyl.