Ray Box with Magnetic Base, 12V 21W Category_Plasticware and image-formation experiments in introductory

and image-formation experiments in introductory optics

and three low-friction nylon wheels for straight-line momentum experiments

Base-mounted 2-stroke diesel engine model in aluminum and plastic

this 4mm-stackable safety lead carries up to 12A through nickel-plated split-hollow pins on both ends

sized for low-current circuit work below the 1A range where finer resolution matters more than full-scale capacity

Ray Box with Magnetic Base, 12V 21W Category_Plasticware and image-formation experiments in introductoryMagnetic base anchors the metal cased unit to benches and steel boards, while variable focus produces five parallel beams that a shutter masks selectively. Ships with a 12V 21W bulb.