IR laser and diode laser are two different wavelengths of light that produce different engraving effects on various materials.
IR laser is the perfect choice for metal engraving, such as gold, silver, copper, aluminum, iron, stainless steel, etc. It produces a smaller laser spot, resulting in more precise engraving. Additionally, it can also engrave materials like ABS, acrylic, PC, leather, and stone.
Diode laser, on the other hand, is the ideal choice for wood engraving. It provides precise engraving and is also suitable for materials like ceramic, acrylic, and plastic. Moreover, diode lasers have a stronger cutting capability.
When choosing a laser for engraving, consider the material you want to engrave and select the appropriate laser based on its characteristics.