Building a simple rechargeable lamp is practical for power outages and low-cost lighting. Step 1: Gather Materials You need a 3.7V rechargeable lithium battery, LED bulb (or LED strip), TP4056 charging module, switch, wires, and a small plastic container or casing. Step 2: Prepare the Power System Connect the lithium battery to the TP4056 charging module. This module allows safe charging via USB and protects the battery from overcharging. Step 3: Install the Light Source Connect the LED bulb/strip to the battery output terminals. Ensure correct polarity (positive to positive, negative to negative). Step 4: Add a Switch Place a switch between the battery and LED circuit so you can turn the lamp on and off easily. Step 5: Assemble the Components Fix all components neatly inside the casing. Ensure wires are insulated properly to avoid short circuits. Step 6: Test and Charge Plug in a USB charger to charge the battery. Once charged, switch on the lamp to test brightness and stability. Safety Note: Avoid using damaged batteries or exposed wires. Poor connections can cause overheating. With this setup, you now have a simple rechargeable lamp that can serve during power outages or in low-light environments.
