Re: Quasar Glow Pen?
This pen looks very similar (identical, from the photograph anyway) to the blue LED pen I got from ETG Technology. The units I have have a cussioned grip. You click the top once to extend the pen tip, another time to retract it, again to extend the tip and turn the LED on, and again to retract the tip and turn the LED back off. Lather, rinse, repeat.
The LED is T1 (3mm), and has a dominant wavelength (where you might point to on a color chart) of 470nm.
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