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Old 01-26-2010, 04:45 PM #1
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Default 2214-40ML: Flash from the bore, but thats it... Any hope?

Ended up with a Uniphase 2214-40ML Argon Ion head; (I keep on running into broken stuff...) -- There's a discharge from the tube, it tries to start, and then just a pink flash from the front of the OC mirror (rather bright.)

And that's all she wrote... Any ideas?


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685nm:18650 47mW
671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW
405nm:Yob 630mW ∙ Qfox 750mW ∙ JETL PLC 780mW
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Old 01-26-2010, 04:47 PM #2
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Quote:
Originally Posted by aryntha View Post
Ended up with a Uniphase 2214-40ML Argon Ion head; (I keep on running into broken stuff...) -- There's a discharge from the tube, it tries to start, and then just a pink flash from the front of the OC mirror (rather bright.)

And that's all she wrote... Any ideas?
Could be a misaligned set of mirrors, from my vague argon knowledge I know a pink glow is the raw output when the mirrors are misaligned

Wait for more replies though.
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Old 01-26-2010, 04:55 PM #3
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

What PSU do you have for it?

What is the manufacture date for the laser and PSU?

Does it only click the one time?

Is there any color besides "pink" in the flash?

Do you have goggles that would allow you to look down the bore (protect blue, green, and IR)?

Peace,
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Old 01-26-2010, 05:11 PM #4
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

The laser's MFR date is 10/07/05. It is a 2214-40MLAM-T. According to the meter, there's 0 hours on the tube. (I know, means nothing if its broken..)

My PS is a 2212P-10MLA.

I do have blue/green goggles but it does not stay on long enough for me to look down. It seems to click only once; a normal argon discharge from the side of the tube, and all I can see the brief second its on, is pink. The emission occurs for maybe 1/2 a second, and won't come back unless I shut down the powersupply and start again.

Tilting the tube back and forth, there -might- be debris sliding back and forth but its very very faint - I can't tell if its that or just the cables moving about. (The latter here is what's got my heart sinking a bit on this.)
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671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
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561nm:CNI PGL3C 30mW(41pk)
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544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW
405nm:Yob 630mW ∙ Qfox 750mW ∙ JETL PLC 780mW

Last edited by aryntha; 01-26-2010 at 05:19 PM.
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Old 01-26-2010, 05:33 PM #5
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Quote:
Originally Posted by aryntha View Post
The laser's MFR date is 10/07/05. It is a 2214-40MLAM-T. According to the meter, there's 0 hours on the tube. (I know, means nothing if its broken..)
My PS is a 2212P-10MLA.
I do have blue/green goggles but it does not stay on long enough for me to look down. It seems to click only once; a normal argon discharge from the side of the tube, and all I can see the brief second its on, is pink. The emission occurs for maybe 1/2 a second, and won't come back unless I shut down the powersupply and start again.
Tilting the tube back and forth, there -might- be debris sliding back and forth but its very very faint - I can't tell if its that or just the cables moving about. (The latter here is what's got my heart sinking a bit on this.)
The PSU has the needed power to run a 2214.

Are you saying that the "pink" discharge does NOT stay on after the flash? If the pink discharge does not stay on and there is no "blue" (laser) in the flash, IMO you have a very interesting paper weight there.

Does the PSU work with any other lasers?

It is VERY difficult to break anything "loose" inside one of these tubes.

Peace,
dave
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Old 01-26-2010, 05:35 PM #6
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Any and all light from the tube -- in its entirety - meaning the normal 'glow' from the side of the tube (Seen through the slits in the housing) and the 'pink' from the front - only happens once, and only for 1/2 second. The 'glow' from the sides looks exactly like the glow from the other 2214's.

The PS works with the 2214-20GL I got from you, and my 2214-4GL.

Should I stop trying it, for fear of something catastrophic? If something is 'loose' in the tube, would it make any sense to... roll it around a bit to see if it's blocking the bore, and try again? Or is that a recipe for a very bad day...
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671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
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Last edited by aryntha; 01-26-2010 at 05:37 PM.
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Old 01-26-2010, 05:50 PM #7
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Quote:
Originally Posted by aryntha View Post
Any and all light from the tube -- in its entirety - meaning the normal 'glow' from the side of the tube (Seen through the slits in the housing) and the 'pink' from the front - only happens once, and only for 1/2 second. The 'glow' from the sides looks exactly like the glow from the other 2214's.

The PS works with the 2214-20GL I got from you, and my 2214-4GL.

Should I stop trying it, for fear of something catastrophic? If something is 'loose' in the tube, would it make any sense to... roll it around a bit to see if it's blocking the bore, and try again? Or is that a recipe for a very bad day...
It's trash. Sorry. BTW -- It's hazardous waste as well (beryllium oxide)

There's no real fear of anything catastrophic. You're just wasting time and electricity.

Peace,
dave
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Last edited by daguin; 01-26-2010 at 05:52 PM.
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Old 01-27-2010, 05:43 PM #8
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Quote:
Originally Posted by Asherz View Post
Could be a misaligned set of mirrors
The mirrors are independent from the arc and they have no effect on whether the discharge can be established. You can start the laser discharge without mirrors. They only facilitate lasing of the discharge.

Quote:
Originally Posted by aryntha View Post
The emission occurs for maybe 1/2 a second
That's too long for it to be just the HV pulse. The discharge has to be sustained by tube current for that long of a time. You said it's just one side? What do you mean by that exactly?

Dave, why doesn't the PSU try to start it again? It sounds like some over-current sensor or something to me.
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Old 01-27-2010, 08:17 PM #9
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Quote:
Originally Posted by Cyparagon View Post
The mirrors are independent from the arc and they have no effect on whether the discharge can be established. You can start the laser discharge without mirrors. They only facilitate lasing of the discharge.
That's too long for it to be just the HV pulse. The discharge has to be sustained by tube current for that long of a time. You said it's just one side? What do you mean by that exactly?
Dave, why doesn't the PSU try to start it again? It sounds like some over-current sensor or something to me.
It is too long for just the pulse AND the PSU is good. Something else is wrong in the tube or electronics of the laser. However, he isn't getting ANY color (besides pink) with the starting pulse. IMO even if we/he traced and repaired the other problem(s), it still would not lase.

When he said "the side", I believe he was referring to being able to see the "purplish" glow through the ceramic portion of the tube.

Peace,
dave
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Old 01-27-2010, 09:27 PM #10
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Actually, today the "flash" stayed on for a full second.. Pink emission from the front the whole time, and yes, the violet glow from the "ceramic" that's correct. Still no lasing and the PS does not try again. I'll check continuity of the filament tonight?
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3392nm:REO LHIP HeNe 2mW ∙ 980nm:OLIKE 155mW

808nm:OLIKE 200mW ∙ JETL PLC 600mW(682pk)
780nm:OLIKE 120mW
685nm:18650 47mW
671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW
405nm:Yob 630mW ∙ Qfox 750mW ∙ JETL PLC 780mW
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Old 01-28-2010, 04:45 AM #11
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Welp, no use speculating anymore guys: No continuity across the filament. Wonder what happened. Oh well.
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808nm:OLIKE 200mW ∙ JETL PLC 600mW(682pk)
780nm:OLIKE 120mW
685nm:18650 47mW
671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW
405nm:Yob 630mW ∙ Qfox 750mW ∙ JETL PLC 780mW
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Old 01-28-2010, 04:52 AM #12
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Quote:
Originally Posted by aryntha View Post
Welp, no use speculating anymore guys: No continuity across the filament. Wonder what happened. Oh well.
Death rattle?

Peace,
dave
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Old 01-29-2010, 02:08 AM #13
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

How the hell did that happen? Does tungsten just snap off like that?
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Old 01-29-2010, 02:21 AM #14
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

Tungsten is a hard metal, but can be brittle. If the tube was handled too roughly in shipping, it could have easily snapped off.
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Old 01-29-2010, 02:35 AM #15
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

The fillament is the cathode. That's why the high current needed.
1. When you turn it on, does the cathode light up like an orange light bulb down inside the tube at the rear? It has to get hot like an old radio tube in order to be an electron emitter. This part is old school.
2. If it doesn't light the fillament (cathode), it might be a small break and tapping the tube gently (with the key switch OFF and power on) while rotating the head around may weld the break together restoring fillament current. Also an old school trick. Don't turn on the key while doing this, you are just trying to restore a small broken connection.

All this only if there is no fillament light.

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Old 01-29-2010, 03:02 AM #16
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Default Re: 2214-40ML: Flash from the bore, but thats it... Any hope?

I'll try that next. Of course, if it is a small break fixable like that it'll probably be an "on-again off-again laser" ... That's what I was wondering though: I presume with the key OFF i should see some filament glow.

Will give that a look, but I have a feeling there's just no continuity. As to how it happened, no idea - rough shipping? Maybe.
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3392nm:REO LHIP HeNe 2mW ∙ 980nm:OLIKE 155mW

808nm:OLIKE 200mW ∙ JETL PLC 600mW(682pk)
780nm:OLIKE 120mW
685nm:18650 47mW
671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
452nm:Osram SM 47mW
445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW
405nm:Yob 630mW ∙ Qfox 750mW ∙ JETL PLC 780mW
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