Incandescent Miniature Bulb #222 – TL3 – 0.6W – 2.25V – E10 Base – Compatible with Eiko 40492 for Educational Circuits (100)

This #222 miniature incandescent bulb is designed specifically for educational use in low-voltage circuit applications. Rated at 0.6 watts and 2.25 volts, it features an S2 filament in a TL3 envelope and uses a standard Miniature Screw (E10) base. it is fully compatible with the Eiko #222 (40492) bulb—making it a reliable and cost-effective replacement for schools, labs, and training kits already using Eiko-standard components. Ideal for science fair projects, electrical engineering instruction, and physics circuit boards, this bulb delivers hands-on learning in controlled environments.

• Model TL3 - Eiko #222 Compatible – Fully interchangeable with Eiko 40492, model TL3, used in many STEM kits
• Low Voltage for Safety – Operates at just 2.25V and 0.6W for safe student experimentation
• Standard E10 Screw Base – Ensures wide compatibility with educational sockets and circuit boards
• S2 Filament Type – Reliable and visible light source for circuit flow demonstrations
• Perfect for Learning Kits – Supports topics in current, resistance, and energy transfer