The SAIISH Spectrum Tube Set of 18 with 110V Power Supply is a complete laboratory demonstration kit designed for clear and reliable spectral observation in educational and research environments. This comprehensive set includes eighteen precision-filled spectrum tubes along with a dedicated 110-volt power supply, providing a convenient all-in-one solution for physics and chemistry demonstrations. Engineered for consistent performance, the power supply delivers stable output to illuminate the tubes clearly, allowing accurate visualization of characteristic emission lines. The sturdy housing and clearly marked connections support safe and dependable classroom use. Each tube is securely constructed for repeated demonstrations in schools, colleges, and laboratory settings. This kit is ideal for teaching atomic structure, spectroscopy principles, and light emission concepts. The organized set format helps instructors quickly set up demonstrations while maintaining neat storage between uses. Designed for educational reliability, the SAIISH spectroscopy kit offers a practical and efficient solution for laboratory instruction. Note: Operates on 110V power. Intended for laboratory and educational use.