Quote:
Originally Posted by holistichorse
Yes 660 nanometers can only be red light, but red light has wavelengths between 600-700 nanometers, and these torches only utilise 660nm.
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Is this why my red penlight torch came free in last year's royal show Glowbag? (along with the shock-activated flashing eyeball and screaming flying super daredevil monkey)
