| Model | 737G | 737G+ | 737DH | 738AL |
| Price($) | 138.89 | 275.49 | 294.49 | 249.99 |
| Parameters | ||||
| Rated Power | 2.8KW | 4.3KW | 4.3KW | 3.6KW |
| Input Voltage | AC 110V/220V | AC 110V/220V | AC 110V/220V | AC 110V/220V |
| Plug | US Plug | US Plug | US Plug | US Plug |
| Welding Thickness of Welding Head(Nickel Plated) | 0.05-0.15mm | 0.05-0.35mm | 0.05-0.35mm | 0.05-0.35mm |
| Welding Thickness of Welding Head(Pure Nickel) | 0.05-0.12mm | 0.05-0.25mm | 0.05-0.25mm | 0.05-0.25mm |
| Welding Thickness of Welding Pen(Nickel Plated) | N/A | 0.05-0.2mm | 0.05-0.2mm | 0.05-0.2mm |
| Welding Thickness of Welding Pen(Pure Nickel) | N/A | 0.05-0.15mm | 0.05-0.15mm | 0.05-0.15mm |
| Welding Current | 50-800A | 120-1200A | 120-1200A | 50-900A |
| Output Voltage | 0-3.6V | 0-4V | 0-4V | 0-4V |
| Adjustable Pulse Numbers | 1-2P | 1-18P | 1-18P | 1-18P |
| Product Size(WxLxH) | 7.09x13x10.24 inches | 7.09x12.6x12.6 inches | 7.09x12.6x12.6 inches | 7.09x12.6x12.6 inches |
| Product Weight | 9.48lbs | 12.13lbs | 12.13lbs | 12.13lbs |
| Package Size(WxLxH) | 8.66x14.57x12.2 inches | 8.66x14.17x14.17 inches | 8.66x14.17x14.17 inches | 8.66x14.17x14.17 inches |
| Package Weight | 12.13lbs | 16.53lbs | 16.53lbs | 16.53lbs |
| Functions | ||||
| Fixed Welding Head | √ | √ | √ | √ |
| Mobile Welding Pen | x | √ | √ | √ |
| Moveable Welding Head | x | x | x | √ |
| LED Light | √ | x | √ | x |
| Pulse Setting | √ | √ | √ | √ |
| Foot Pedal Controlling | √ | √ | √ | √ |
| Automatic Touching Welding | x | √ | √ | x |
| Actual Welding Current Display | x | x | √ | x |
| Time-delay Welding | x | x | √ | x |
| Output Power Controlling | x | √ | √ | x |
One Year Warranty!
