The main difference between LP2, LP3, and LP4 lies in their laser source, laser power, engraving area, and suitable material types.

Laser Source & Power: LP2 is a 5W 450nm blue laser. LP3 is a 1W 1064nm infrared laser. LP4 is a dual laser with a 10W 450nm blue laser and a 2W 1064nm infrared laser. It not only combines the two laser sources of both LP2 and LP3 but also doubles their power.

Engraving Area: LP2’s standard working area is 100 x 100 mm (square), and LP3’s is 115 x 80 mm (oval). LP4’s standard working area is 160 x 120 mm (square).

Materials: LP2 can work on paper, wood, leather, MDF, stainless steel, dark opaque acrylic, bamboo, fabric, dark glass, ceramic, jade, marble, shale, cement, brick, parts of painted metals, etc. LP3 can work on almost all metals and plastics, including gold, silver, copper, aluminum, titanium, stainless steel, platinum, acrylic, ABS, etc. LP4 can work on all the materials LP2 and LP3 can work on and more.