Lamp Holder Demonstration Board Science at Home_Physical Science sized for high-turn-count solenoid construction

sized for high-turn-count solenoid construction where 500g of fine wire feeds multiple project builds

Self-venting and color-coded for quick identification

protecting the wooden edges during daily classroom handling and extending the usable life of the measurement tool

Die-cast body with plated brass parts anchors this cork-lined two-prong universal clamp

Magnetic-base pulley with a 50mm ball-bearing plastic wheel

Lamp Holder Demonstration Board Science at Home_Physical Science sized for high-turn-count solenoid constructionMES bulb in a holder mounted on a demonstration base with 4mm plug connections, supplying a 4. 5V 0. 3A load that lights up to confirm circuit completion in series and parallel demos.