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Model 890 Laser Pointer Manual 450nm Blue 520nm Green ① Install star caps or attachment here. ② Screw in/out to adjust the laser beam. ③ On/Off button. ④ This laser uses 1 x 18650 for 532nm Green and 2 x 16340 Li-ion 3.7V batteries for 450nm blue and 520nm Green.
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2. Don’t light up over 2 minutes each time, totally cool down before you use it again, if or, it may be damaged by overheated. 3. Keep away from children, don’t direct to eyes. User is responsible for any improper using way. www.laserpointerstore.com facebook @ laserpointerstore Made in China...