Characteristics: This 650 nm laser diode is an industrial electronic component used as an industrial will, laboratory, DIY. It is a precise and sensitive optical instrument. Before continuing with some DIY laser activities, please read the technical information first and protect your eyes before laser radiation. Make sure that the operator has experience in DIY or optical testing. Working voltage: 3 - 5V Working temperature: ＋15 ~ 35 Operating current: I <45mA Maximum charge current: 1000mA Battery discharge protection voltage: 2.8V 4 LEDs indicate the battery level and status load: (1) 0-25%: one light is on (2) 25% to 50%: the first light is on continuously, the second light flashes (3) 50% to 75%: The first two lights are lit continuously, the third indicator flashes (4) 75% to 100%: the first three indicators are lit continuously, the fourth indicator flashes. When the 4 LEDs are lit continuously, the battery is 100% charged Card size: 69mm * 32mm * 8mm (69mm * 37mm, including USB connector and LED overhang)
