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405nm Laser Pen 488nm Conversion

Joined
Dec 14, 2020
Messages
65
Points
8
I have replaced the stock SLD3232VF 405nm diode that comes with these cheap pen lasers with a Sharp GH04850B2G diode 488nm :)

Try it yourself! With some patience and a few tools, its quite easy.

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ZRaffleticket

Well-known member
Joined
Feb 4, 2010
Messages
3,157
Points
113
I ended up doing the same after seeing this since I have a few spares. Not sure the driver is the best for these, the diode I used normally clocks in around 489nm but it's pushing 492nm on the crap driver. Typically see that with CV sources being above the diode's rating and creates excess heat... would recommend using a better driver and desoldering the rest of the crap driver minus the button.
 
Joined
Dec 14, 2020
Messages
65
Points
8
I ended up doing the same after seeing this since I have a few spares. Not sure the driver is the best for these, the diode I used normally clocks in around 489nm but it's pushing 492nm on the crap driver. Typically see that with CV sources being above the diode's rating and creates excess heat... would recommend using a better driver and desoldering the rest of the crap driver minus the button.
You have to make sure to change the shunt resistor on the boost driver to output 105mA for the 488nm diode :)

It's not plug and play!
 




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