Rechargeable LED Pen Light 2-Pack with COB Light - 4 Modes, Super Bright 500 Lumens Pocket Flashlight, Waterproof, Ideal for Indoor, Outdoor, Work, Repair, Emergency, Nurses, and Doctors

Name: Dual light source flashlight Light source: white light/yellow light dual light source Color temperature: white light 5000K/yellow light 4000K, not harmful to eyes Material: ABS Waterproof: IPX6 level Power supply: USB charging Battery life: 3-5 hours Size:14.7CMX1.5CM Weight: 21G each Packaging: One each of black and gray models + black and red models One: Switch instructions: 1. The positive pole of the battery is facing inward (the side of the lamp head) and the negative pole is facing outward (the tail). 2. The switch is at the tail. The switch function is the switch function, and the light switch is the dimming function. Two: Circuit Board Instructions: 1. Our flashlight adopts advanced voltage stabilization and constant current technology, which can effectively solve the requirements of LED flashlights for voltage stabilization and constant current. 2. Special reminder: a. Do not use it with overvoltage, and the voltage should not exceed 4.2V. b. Put the battery with the root facing forward. Do not turn it upside down, otherwise, it will burn the board. c. Pay attention to the temperature change of the flashlight to ensure heat dissipation. d. Non-professionals Do not open the circuit board Three: Lithium battery usage instructions: 1. Characteristics of lithium batteries: The charging methods of lithium batteries and mobile phone batteries are completely different; lithium batteries have no memory and can be charged at any time. Do not overcharge or discharge. 2. Special reminder to use a three-proof charger that prevents overcharging, reverse connection, and short circuit; 3. If the battery is not used for a long time, it should be fully charged and stored. Normally, it should be charged and discharged again in about three months; • ? Lightweight and Portable: Say goodbye to bulky flashlights! These pen flashlights weigh just 0.74oz, making them incredibly lightweight and easy to carry. • The handy clip allows you to attach them to belts, notebooks, pockets, or jeans, providing hands-free convenience for your tasks and repairs. • ? Super Bright Illumination: Experience powerful illumination with 500 lumens (max) LED brightness, capable of reaching distances of nearly 420 ft. • Whether you're reading, working, inspecting tight spaces, or dealing with emergencies, this pen flashlight guides your way effectively. • ? Versatile Lighting Modes: These flashlights offer four lighting modes to cater to your specific needs.