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670 nm red light for eyes
Skip itSoft demand (-16.3% this quarter) — this niche doesn't clear our bar today.
Review moat
Great116.7avg incumbent reviews — the moat a new listing must climb
Avg price
Great$46.44avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Brand share
Good69%top-5 brand share — brands hold most of the demand
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Returns
Okay3.7%return rate — above 5% kills the launch gate
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Price range
Okay$7.97–$286.53cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$98K$98K/yr · 84K searches
Growth
Bad-16.3%90-day search growth — must beat 0% to launch