1. Use of infrared welding technology which is developed independently. 2. Use of an infrared heat lamp. Heat is easy to pierce and distribute evenly, which overcome disadvantage (burn out elements) of traditional welding machines. 3. Easy operation. You just need one-day training and you can operate it skillfully. 4. No need for unsolder tools. IRDA Welder T-862 can unsolder all the elements between 05 and 20mm. 5. This machine has 650W hot-melt system. Its preheating area is 80x120mm. 6. Infrared heating without heated air flowing. No impact on circumjacent small elements. It is suitable for all of the elements, especially Micro BGA elements.