What makes a fluorescent highlighter marker so bright?

What makes a highlighter different than a yellow marker? - Quora

9 Stabilo Boss Original Fluorescent Color Highlighter Marker Chisel Nib Study School Office Art Craft Bright Colour Stationery

BIC Brite Liner Fluorescent Highlighters - Chisel Marker Point Style - Yellow - 1 Dozen - Filo CleanTech

Make organization fun and easy with the BIC Brite Liner Highlighters Assorted Colors. These highlighters have a chisel tip for broad highlighting or

BIC Brite Liner Yellow Highlighter, Chisel Tip, Fluorescent Yellow Ink, 24 Count

BIC Brite Liner Highlighter, Assorted, 12 Pack - BICBL11AST

Avery® Hi-Liter Desk-Style Highlighters - Chisel Marker Point Style - Light Blue, Light Green, Light Pink, Yellow Water Based Ink - Yellow, Light Green, Light Blue, Light Pink Barrel - 4 / Box

Bible Safe Gel Highlighters, Assorted Bright Neon Fluorescent Highlight Colors - 16 Count, 16 Highlighters - Kroger

Avery® Pen-Style Fluorescent Highlighters - Zerbee

Yellow Highlighter Pens. Bright neon yellow colour. Ideal for highlighting passages of text. We aim to resolve any problem as quickly as possible.

Bright Fluorescent Yellow Colour Highlighter Pens Book Page Markers Highlighters

What makes highlighter pens so bright? – How It Works

The Best Highlighter Pens