Frankenstein Lab – Halloween Diorama with Glowing UV Test Tubes | USB-C, Real Switch

A mad scientist's laboratory for Halloween – with real test tubes lit from below by UV LEDs! Put six store-bought test tubes (16 x 150 mm) into the rack, fill them with tonic water or highlighter water – and they glow neon green, pink and blue in the dark. **FEATURES** - 6 UV LEDs (5 mm, 395 nm) sit in shafts right under the tubes, the wires run hidden in a channel - USB-C power (5 V), no batteries to change: hollow workbench with a pocket for the USB-C board and a screwed-on bottom cover - A r…

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