Features 1、Efficient Illumination: The LED egg candler provides clear and bright lighting, making it easy to check the conditions inside the egg, ensuring you can monitoring embryo development effectively. 2、USB Portable Design: With its portable design, this cool light egg candler light can be conveniently charged via USB, making it easy to carry and use wherever you need it. 3、Monitoring Egg Development: Specifically designed for hatching egg inspection, this egg candling light helps confirm the development status of embryos, providing essential insight for hatchery success. 4、Extended Usage Time: Boasting a long battery life, this egg candler ensures extended use without the need for frequent recharging, allowing for thorough inspections whenever necessary. 5、Versatile Application: Beyond incubators, this egg tester light is also suitable for various other lighting needs, making it a multifunctional tool for different scenarios. Specifications: Item Type: LED Cool Light Egg Candler Material: Plastic Size: Approx. 15x3.7cm / 5.91x1.46in Battery Type: AA Battery*3 (Batteries not included) Package List 1 x LED Egg Candler (Component x 3) 1 x Battery Box 1 x USB Cable