Velleman Pink PLA Filament for 3D Printers, 2.85mm (1/8") Diameter, 4716" Length, 750G This adjustable-speed strobe is great

This adjustable-speed strobe is great for parties

specifically for audio bandwidth

a ferrite core and a Hall effect element

You can simulate the finger of a girl touching the heart of a boy and see the flashing rate of the LEDs speed up

Velleman Pink PLA Filament for 3D Printers, 2.85mm (1/8") Diameter, 4716" Length, 750G This adjustable-speed strobe is greatColor: Pink 2. 85mm (1 8") Diameter 750 Grams Good compatibility and biodegradability Environment friendly material For model K8400 Vertex 3D printer Filament for 3D printers. PLA is a biodegradable plastic with a shiny surface and it is available in different colors.