... 28mm, 38mm, 48mm.(1)When the area of the chips is below 15mm*15mm, please choose the IR-lamp ... about 20-40seconds.(2)When the area of the chips is between 15mm*15mm and 30mm*30mm, please choose ... about 30-60seconds.(3)When the area of the chips is above 30mm*30mm, please choose the IR-lamp ... You should control the time carefully to avoid burning the chips.Packing: carton size: 43*26*42cm gross weight:10 ...