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ArcticMyst Security by Avery
High Power Blue Laser Pointer Pen 450nm Burn Military Focus Visible Beam on eBay
- Thread starter Chuckh
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Well a positive is, it isn't one of those cheap Chinese models. Also I can tell that he is using a M140 and the heatsink should be adequate for that type of diode for a short time only. The divergence seems a bit low for a M140 though, but others may be able to verify this if using a different lens. I used a g2 lens and had a divergence of 2-2.5mRad. He seems legit on first glance, but I have no experience with the seller. I would use a duty cycle anyway, as it will improve your diode lifetime. The most important question though is with you, what goggles have you got?
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The item name sounds Chinese, but it isn't a normal Chinese host. Instead, some dullard decided to put an A-140/M-140 into an UltraFire AA flashlight. I do not think that heat sinking is sufficient for this diode.
Also, way overpriced.
Edit: hey, I'm a veteran now!
Also, way overpriced.
Edit: hey, I'm a veteran now!
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diachi
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The price is rather steep (Compared to reputable Chinese manufacturers at least) and I don't see how that'd ever manage a continuous duty cycle without getting dangerously warm - 2-3 minutes should be OK though. Not the worst deal I've seen ... assuming the internal construction looks as good as the exterior anyway. Might be a member here that's selling it - does look like a hobbyist build.
Sanwu offers a 3W 445nm for slightly less: https://sites.google.com/site/hkfew5e22/Series/Spike
Seconded on everything there Curtis - especially goggles.
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It may or may not be 2W, probably not. It's definitely not continuous duty in that size host, especially if it is close to 2W.
I would be real suspicious of those safety glasses that come with it!
I would be real suspicious of those safety glasses that come with it!
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Definitely go with Sanwu, rather than an unknown seller when you have the choice. Something I didn't notice the first time round.
the package include:
1xAluminum Box
1xBlue Laser Pointer
1xRechargeable Battery
1xBattery Charger
1xFold sunglasses
the package include:
1xAluminum Box
1xBlue Laser Pointer
1xRechargeable Battery
1xBattery Charger
1xFold sunglasses
diachi
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Can't seem them in the pictures, I really hope it isn't just a pair of sunglasses...
Can't seem them in the pictures, I really hope it isn't just a pair of sunglasses...
Hey, if they are, at least you will get some free sunglasses with your laser :crackup:
Razako
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No way is that constant duty cycle. My Sanwu 3W spiker gets kinda hot after being left on for 5+ minutes, and it's in a massive heatsinked host.
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Yes, a bit worrying IMO. I just checked his feedback. He charges the same price whether it is a 405 or 450.
How many people are using sunglasses thinking they are safe? :tsk:
How many people are using sunglasses thinking they are safe? :tsk:
Curtis, for the lasers I have already. One 405nm 1 watt and my cheap green one that does not burn, I have these:
https://www.amazon.com/gp/product/B01DP2HJ0S/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
They were $42.00 with free shipping.
I have a 1 watt red (650nm) and for that one I got this pair:
Eagle Pair® 190-400nm & 580-760nm Laser Safety Goggles
This one was also $42.00 and free shipping but there is a coupon code somewhere that I discovered in some thread in one of the laser pointer forums here and got 10% off that one. I used Google to help me find that.
I was leary of his claims too and decided not to buy that one.
https://www.amazon.com/gp/product/B01DP2HJ0S/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
They were $42.00 with free shipping.
I have a 1 watt red (650nm) and for that one I got this pair:
Eagle Pair® 190-400nm & 580-760nm Laser Safety Goggles
This one was also $42.00 and free shipping but there is a coupon code somewhere that I discovered in some thread in one of the laser pointer forums here and got 10% off that one. I used Google to help me find that.
I was leary of his claims too and decided not to buy that one.
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I would probably not use the "sunglasses" that he lists. A lot of times the ones on eBay are cheap. I wonder sometimes if they would even block a 5 mw laser, that is assuming that the wavelength of the laser matches them in the first place or they would be useless.
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Good, the OD on those glasses is more than enough for ~2W of 445nm. Go with Sanwu and enjoy but stay safe.
The item name sounds Chinese, but it isn't a normal Chinese host. Instead, some dullard decided to put an A-140/M-140 into an UltraFire AA flashlight. I do not think that heat sinking is sufficient for this diode.
Also, way overpriced.
Edit: hey, I'm a veteran now!
This you can find domestic 303/303s for like 10 tenth of that.
my red is a 110mW fully focusable.
So i'd wager you'd get atleast 50mw at worst probaly 80-120mw which is enough to burn white easily when focused to a tiny dot.
