200-500mw Separation of crystal waterproof high po

200-500mw Separation of crystal waterproofhigh power and quality Portable green laser pointer SE-300 Specification :(1)Model : SE-300 (green laser pointer)(2)Wavelength: 532nm(3) Material:Hard aluminum(4)Laser range:500-1,000 meters(5)Battery: CR18650 (6)Exterior surface treatment:flashlight/blond(7)Power:250mw,300mw,350mw,400mw,500mw(8) Switch mode:rear locking switch(9)Start Time:<3 second (10) Operating Voltage:DC3.7-4.2V (11)Dimension: 190mm/160mmx 24mm(12) Product Weight:155g(without battery)(13)Packing: 260mm*170mm*70mm(14) N.G: 504g(15)Working temperature:0-35 degrees(should not excced 3 minutes in the air,working for a long time depend on the battery)Feature:Constant on/off switchWell tested and high qualitygreen laser pointerClearly visible in the darkUsing long lifetime chip, more than 5000hoursApplication Area:Teaching / lecturesAstronomy enthusiastsMuseums ,Gallery guidesBuilding field / mining fieldBusiness person/ Conference SpeakerBars, KTV, clubs, concert sitePacking list :1xCR186501XCharger1X Gift box1X Laser pointer1X laser safety glasses1x mamaulProducts color :black Operation and Caution: 1.Put one batterie into the laser tube with the “+” outward, and don’t point the laser beam to anybody, especially the eyes. 2.You shouldn't bump the machine. 3.You shouldn’t disassemble or rebuild the machine, we will not responsible for the damage caused by this. 4.The laser Pointer is quite sensitive to the temperature. The output power will vary when the temperature varied. 5.It is better for lifetime of laser for using laser about less than 3 minutes.