Sold: 2W 445nm laser

[marcuspeh]

Next up for sale is 445nm laser. The laser has only been switched on for less than a min to take 2 beam shot. The build can be found here. It will be shipped out disassembled aka tail cap packed seperately from the host
Host: Purple Wf501b with black heatsink
Driver:Blitzbuck set to 1708mA
Diode: M140
Lense: G9 in brass housing



Price: $70
Pm me for shipping rates

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I would prefer the money to be send over with the 'friends or family' option. However,if you want to send it as payment, you have to pay for the PayPal fees. Everything will be shipped out with Singpost

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[crazyspaz]

Re: FS: 4A testload

12 hour bump?
Anyway, why would people buy these over Jufrans standard 3A test loads, when these are more expensive? That extra 1A isn't super useful, and Jufrans test loads are nicely layed out and labeled. Furthermore, have you tested these to 4A, or are you just assuming they work perfectly?

 

[marcuspeh]

Re: FS: 4A testload

12 hour bump?

Ops maybe I shouldn't have bumped it. Sorry.

That extra 1A isn't super useful

Well, 1A isn't really useful but it will let you set drivers to 1A higher

Anyway, why would people buy these over Jufrans standard 3A test loads, when these are more expensive?

Technically, this is cheaper as this is assembled

Furthermore, have you tested these to 4A, or are you just assuming they work perfectly?

The shop that I bought the diodes from tested them

 

[The Lightning Stalker]

Re: FS: 4A testload

Some questions
Is that a wirewound resistor?
Who soldered that board?
What is the other resistor for?

 

[marcuspeh]

Some questions
Is that a wirewound resistor?

Yup thats a wirewound resistor

Who soldered that board?

I did

What is the other resistor for?

It is to discharge the capacitors on the driver

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[marcuspeh]

Re: FS: 4A testload

:bumpit:

 

[Alaskan]

Re: FS: 4A testload

Here's a question for ya, why do we use these diodes for loads instead of just switching in and out resistors?

 

[The Lightning Stalker]

Re: FS: 4A testload

Real diodes more accurately represent the
characteristics of a laser diode.

 

[Alaskan]

Re: FS: 4A testload

I guess one could combine two of these in parallel for double the load? Edit: Naw, maybe not, the individual boards would need to have extremely close voltage drops or one would pull more of the load than the other... I know in high voltage rectifiers the voltage drop of each diode needs to be closely matched if in parallel.

 

[TaterMay]

Re: FS: 4A testload

I actually just ordered a 3A DIY kit. I am interested in this, but I need to sell one of my current builds first. All my playing money is tied up in builds right now. Lol.