Arslan Automotive offers two entries in the TECNA Automatic Smart Plus Spot welding line the 3664P and the 36EZ. Both welders can be used on steel high-strength steel and ultra high-strength steel and both units offer “Smart Plus mode” which senses metal type and thickness without operator input. Both feature a water cooled transformer and arms a 20 ft. lightweight cable powder coated cabinet and a 360-degree swivel gun with gun balancer although the balancer on the 3664P is classified as “heavy-duty”. The 3664P offers more modes than the 36EZ including modes for expert welders. Each unit allows users to upload new programs and record welds for printouts on the unit’s USB stick.