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i know. but Rectangular shape is not sharper than Sharp 495. And i like the sharp beam :love:

I purchased from AliExpress. and It has a blurry rectangle around the point. like this.. ㅡ Green point is perfect :giggle: . Single mode diodes are the best.

GH0521DE2G 135mw 520nm diode 10440 2x LDSE500 buck boost driver 500ma set 220mw G-2 lens i love single mode green laser :love: wow...! :cool: I do not recommend a current above 500ma. I recently lost another diode using an unstable Chinese boost driver. Perhaps the reason is...

i think Impossible up to 300mw. I am using it now at 240mw output. this diode is great! very bright and sharp. single beam 250mw diode :love:

Oh!! Nice i love this diode. By the way.. this diode is multiple mode is right?

6sec.. 20 sec rest.. Pen host build very short run time But i'm fine.

Attached! here 425nm 2w and 412nm 1.5w

I changed the driver boost to 1.6A buck driver now! I don't mind if this dies. If it do not die, my luck is good. 2w violet... good :love:

i am a jedi... master windu :cool: 1.4A current It is 2w very bright!. and One month survival :love: It was photographed a little pink. but In fact, this is light purple Not a very good host I need portability. and can not be used for long

2.8Amp? i think 473nm color! :love: wow... How long was the laser survive?

https://www.ebay.com/itm/Adjustable-445nm-450nm-473nm-1W-1-4W-2W-Blue-Laser-Diode-Driver-Power-3-5V-2-5A/112037076200?_trkparms=ispr%3D1&hash=item1a15ee1ce8:g:xbcAAOSwvg9XbOP0&enc=AQADAAAB0KX%2FKt4E1xf3SDqEdBclaYbgT2hA217dbN75dnVwOy1Xk3RY37vzTy1T10F2%2B5Mzyw4wPgRgCfCQFGi%2Bwlhy3IPaE4TUVdUYDsbk22I...

i have one more sharp multi violet laser build. It has different colors 410nm ~ 414nm 1.5w pen and 425nm 2w . 2w output 425nm laser is brighter than PL520B 160mw Sharp diode is random.. just like Lottery ticket :giggle: Well... I want to win the lottery ticket. :coffee:

Thank you for your advice. I think ... Sharp diode output is random. Lifetime output wavelength... All . if it dead someday. I want change violet to Watt green.

Successfully made 2W 425nm !. i will upload my violet laser build If it does not die after 2 months It's too hot and the battery consumption is very high.

i love violet color. so 1.4Amp is very danger. Thank you for your advice. but It's worth a challenge.

i don't want BDR209 anymore.. However, quality is liked. How much Max have you set the current for the Sharp diode? And can you tell me how long the diode been alive? i need advice before set 1.4Amp current for GH04w10A2GC

I have one violet laser GH04W10A2GC diode 1amp . I can run my diode for max 10 sec because pen build It is alive for 5 months !!!. so i want 1.4Amp set next time :D

so happy! . my 1amp violet laser 5Month survival I want 1.4amp current next time for 2W

I think 2.5a current. Osram diode is good!!!

This blue laser is really PLTB450B right?. 2.8w It's too much overload.