1 unit electronic engineering kit, infinite touch adjustment, welding practice kit, manual assembly required, electronics enthusiast, no battery, working voltage 5V

1. The lamp is made of ceramic material and is easy to break. Handle it gently during welding and assembly to prevent damage to the lamp. Squeeze the lamp last. 5. By briefly pressing (less than 0.5 seconds) the touch button, the light can be turned on and off easily. The next time the light is turned off, the light intensity will smoothly increase to the saved light intensity to avoid strong and unexpected irritation to the eyes.