... the spatters.2. Digital display ammeter, the welding current and voltage can be accurately prsetting.3. Electron resistance control , stable wedlign ... splash, deep melt pool, good appearance.4. Optimized arc strike and arc end. it's applicable for spot welding, short welding ... , seam welding.5. Can end the arc automatically and save the labor.6. Small volume, light weight, easy operation ...