The There Are No Stupid Questions Thread

Ah, Luxeon’s on it:

Now, to find a driver ….

hmmmm —- red 670nm laser, pretty cheap
http://www.aixiz.com/store/product_info.php/products_id/312
670nm 5mW laser module 3VDC adj. lens 670 nm $6.50

Apparently has a driver. Or else is running on straight 3V, a couple of batteries?
Not tht I’d want to point this straight into my eyeballs, of course. Maybe diffused or reflector-bounced off a white board ….

Thank you Scallywag, now i don’t feel so dumb anymore :+1:

I read up on the FT03. Pretty sweet thrower, It’s made by Bangwood, and I think it was a year ago when I promised myself to stay away from them. Still waiting for my package.

Would it be a dumb thing to pass on it and find a different thrower somewhere else?

There are other stores selling the FT03, like on Aliexpress for $50 ish, but you don’t get the good coupon code.

You can also find the same light as a Mateminco MT35 on Aliexpress. It’s about $40 ish depending on the bezel you want. That’s probably your best bet.

Then you don’t have to deal with Banggood, but you still take risks from using a store your not familiar with.

I dont know your situation from Banggood, but if the shipping takes a few months, ask for a refund. Sometimes packages get lost, then later found and get delivered. It sucks, but at some point in time, like 3 months, it needs to be declared lost and you refunded. Of course businesses do not like giving refunds and Banggood will hassle you a bit (some people get discouraged and give up which means the store saves money), but you just stick with it and demand a refund.

I wouldn’t even do that. If your diffuser burns through – or the intensity of the laser just degrades it to be a bit less diffuse – then you end up lasering your retina.

Even the reflector idea is iffy. All it takes is an accidental mis-point reflecting off something shiny.

To be honest, I’m really looking askance at this whole idea of deliberately shining DIY lights of any kind into your eyes. I’d leave that sort of idea to medical device designers if I were you.

I understand why people enjoy warm emitters with a high CRI, but what application does a 6500K light have? Lets say a D4V2 - what would be the motivation to get a 6000K-6500K emitter version?

People that think single percentage point increases in output are noticeable and/or mistake eye strain as being “brighter”.

A lot of folks associate warm or neutral color leds for being crappy, old, incandescent looking. While the cool white colors are modern, fresh leds. It’s why cars come in different colors. People have different preferences. On top of that, not everyone sees the same. Color perception varies from person to person.

To annoy people, and to attract bugs.

I am loving my https://www.reylight.net/product/reylight-pineapple-copper-limited-edition/ with 4000K Nichia 219C high CRI.

Are all 4000k 219C made the same or is there a tint lottery?

If I want to try something warmer along the same lines, would the 3500k E21A be a good choice or are there others I should look at?

There is definitely some tint lottery with 219Cs, but many manufacturers source good bins.

E21A would be an upgrade in many ways (assuming you mean a quad in the KR4?). Better tint and better coloring rendering, plus a bit warmer which it sounds like you want. 3000K and 2700K SST-20s are very nice too, but that’s even warmer.

SST-20 is very nice in 3500K.

Folomov C2 with E21A, 3000K

Sofirn C01S with SST-20, 3500K

It did ask for a refund over and over but they refused , because their “tracking showed delivered”, and I couldn’t get my money back from PPal as well. Someone here mentioned that they play games with reusing tracking numbers and that way if it gets lost they are not responsible. Could be bad luck but it left me with a bitter aftertaste.

Was the delivered address correct? If not, then you should have a case. If the tracking number still shows an older delivery, they may have given you the wrong number. Again, that should be their fault. They cant say it got “delivered” and the delivery address not be yours. I assumed you plugged the tracking number into at least 2 or 3 tracking services. Sometimes one tracking service is not up to date.

I don’t know what country your in, but I know some countries can be really bad with foreign deliveries.

All tracking numbers get reused so that person is probably not aware of that and assumed it was something malicious.

I never had a tracking problem with them, but I’m in the US. Then again, I dont always check the tracking unless it hasn’t shown up within 3 or 4 weeks.

I can understand if you feel screwed over. Astrolux is Banggoods house brand, but if they use Mateminco to build it, Mateminco will sometimes do their own version. It’s exactly the same product, just a different brand and sold in different stores.

I forget what you were originally looking for, but I think it was a med size thrower? There are definitely other lights out there around the same size as the FT03, but they are more basic or else cost more. FT03/MT35 gives you a lot for your money. I’m sure there are threads on mid size throwers here.

Thanks Unheard and BurningPlayd0h.

[quote=JasonWW]

The address was correct,
I was looking for a thrower that would fit in a C8 holster or something similar.
Will check out the threads. Thank you again and I really appreciate your time.

Who knows how to get in contact with Nightwatch (the flashlight brand)? My Taobao chat tool does not work currently. I would have a few questions about the NSX4.

Other manufacturers have an Aliexpress store or even a BLF account where you can bother them with questions. :wink: With Nightwatch I never found any other possibility to contact them apart from their Taobao store.

I dont know, but I do know Neal works with them a lot. You might ask him how to best contact Nightwatch.

What’s the current highest output LED?

Still the XHP70.2?

I know the SBT90.2 is a nice competitor but only because it’s a 3v led instead of a 6v led like the XHP70.2.
The latter one has still a higher (potential) output.

Using a 6v led isn’t a problem, only need to find a suitable driver for it to drive it with some decent amps. Somewhere around 8 or 10A.

Still need to figure out the cell configuration. Right now I was thinking to use 2s high drain 18650’s. Though might change it to 21700’s, however that would require some major redesign.