If you have got the chance to make highly precise line projection at different work distances, even though it is far more enough than formal hand reaching, however, it still makes a good job for users to operate a highly precise device such as a 650nm red line laser module. It keeps works with intense and visible red laser beam emission directly from a 650nm red laser diode. Cooperating with a qualified optic lens with different fan angles and constant electric power source supply, only after its easy mounting onto any other industrial device and equipment, it begins to make long lasting red line projection onto multiple working surfaces effectively. The usual use of a 650nm red line laser module has to work for multiple working fields, thus it is a key issue to maintain it stable and reliable line projection as expected. The primary use an import 650nm red laser diode has just assured increasing laser beam stability in continuous use. The adoption of metal heat sink cooling system is configured with a high duration anodized aluminium alloy housing. Usually it obtains excellent thermal emitting and thermal stabilization, and enables continuous laser beam stability within daily operating time of ten hours per day. Users just also gets no need to worry about laser light decay in proper use.On condition that line alignment work is processing onto two different working surfaces. It just applied a qualified glass coated Lens with wide fan angles of 10 to 110 degrees, it is assuring highly straight and high linear quality red line projection the 0.5 to 6 meters in continuous use. In addition, on condition that users are getting basic measurement of required line length, line fineness and work distance, it just enables correct selection of optic lens fan angle and output power. This accessory part of laser line generator has just provided users quite nice line projection for multiple work fields, covering guideline instruction for stone, wood, metal, steel, garment processing, lumber machines sawmill, laser car wheel alignment and laser medical therapy work etc.Together with electric wires extension for both of 650nm red line laser module and DC power supply, unless it is pointing under sunlight, it always brings the users easy reaching, no barriers and long lasting red line projection onto multiple working surfaces. The unique design of adjustable focus design enables easy screw of laser beam aperture. Once alignment laser gets highly concentrated red laser light source emission, it also makes efficient conversion of increasing accuracy and fineness line projection at greater distance. Users should only take basic laser safety measures and wear correct laser safety googles so as to achieve easy and secured line generation in all occasions effectively.