SE Professional MJ020L LED Illuminated Credit Card 3x Magnifier Power 3x Magnification Slide On/Off Switch Easy Battery Replacement Includes 2x CR2016 Batteries Fits Easily in a Pocket Caution: Keep away from direct sunlight. Direct sunlight through the magnifier lens may cause fire SpecificationsType of Bulb: LED Battery Size: CR2016 Batteries Included?: Yes