This egg tester is made of durable ABS material, known for its insulation and stability. It features high-intensity lights for monitoring egg development. The LED lamp head provides a powerful light source, enabling clear detection of egg hatching status. Fast, safe, and incredibly simple to operate, it boasts durable buttons for easy on and off functionality, ensuring years of use. Ideal for egg hatching, it also serves as a valuable tool for children and students to learn about the experimental hatching process. This egg-shaped candle holder delivers high-intensity LED light, offering ultra-safe illumination for your eggs, safeguarding them from developmental disturbances and potential damage. Upgraded version: Equipped with two charging methods, it can be charged directly via USB or operated with a battery box requiring 3 AA batteries (not included). This dual power option provides convenient flexibility to suit your needs. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.