The quality seems pretty good. There is a quality control sticker on the relay. It may just be for the relay. They were packaged very well. I purchased 2 of them and they arrived in perfect condition. I connected them to bench power supply, 30vdc+/-. They sound great. Very clean sounding.
****a (1341)- Bewertung vom Käufer.
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Nice little laser driver that is a great value for DIY projects with fun lasers! Arrived in great condition and fast shipping. will be in my next project.
o***s (97)- Bewertung vom Käufer.
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This looks good. They have threaded mounting holes to attach to a mounting plate. I'll buy more.
s***o (264)- Bewertung vom Käufer.
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The 30mw green lasers with TTL control look to be of good quality should do do the job. I've yet to connect them and confirm that they work as advertised. The price was a little higher than I was hoping to spend. My total cost for the quatity of 4 was $81.
2***a (1428)- Bewertung vom Käufer.
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Laser Diode Assembly as described and shipped fast.
a***u (299)- Bewertung vom Käufer.
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L'integrato acquistato è risultato essere ottimo e perfettamente funzionante. Ottimo venditore SUPER CONSIGLIATO E SUPER DISPONIBILE. +++++++++