Ray Box with Magnetic Base, 12V 21W Category_Plasticware sized for low-current circuit work

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

One-ohm 5W wire-wound fixed resistor enclosed in an ABS module with 4mm sockets

5mm thermometer hole for specific-heat-capacity experiments

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

Ray Box with Magnetic Base, 12V 21W Category_Plasticware sized for low-current circuit workMagnetic 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.