Bulb, screw style, 3.8-volt

All metal with holes to attach or solder wires.

Plastic base with screw terminals. Designed to fit all our screw base light bulbs. Perfect for exploring electricity and circuits!

Insulated 15" wire leads to quickly connect electrical items.

Quickly find the size of miniature light bulbs and bulb holders you need.

Standard D-size batteries. You will receive either Ultralast or Dorcy brand batteries, depending on supply availability.

Light bulb with threaded base burns brightly with 1.5-volt batteries.

24 gauge solid copper wire with PVC insulation is perfect for connecting batteries, bulbs, switches and most other electrical projects.

Use this battery holder for D-size batteries. It has quick-connect Fahnestock clips.

This battery holder securely holds one regular D-size battery and has metal terminals for attaching wires with alligator or similar clips.

Use this economical piezo-electric buzzer in experiments that require a doorbell or buzzer.