Techhood 400mW RGB Unit.

[Bionic-Badger]

I wish they'd sell just the cheap dichro mounts. Sure I could get some $20 ones from Lasever or something, but it'd be nice if they were like $10 cheapo ones.

 

[weeba2kv]

Indeed BB it's a cute laser fun project for living room laser projector :0)

 

[LaserCo]

Fiddy thanks for revealing the guts to this thing for us!
A few hours ago I was looking at laserland's versions of these little boxes, it apears that they are doing a lot of juggling diode types around, I seen one even where they are using two diodes for red! .....
1W RGB White Laser Module Beam Combined 532nm Green Blue 445nm Red 650nm 638nm | eBay
This takes a special dichro to do this, WTF, how do they fit all that in there?

and as far as I know right now, 473 is only gotten thru DPSS, look:
500mW RGB White Laser Module Beam Combined 532nm Green Blue 473nm Red 638nm | eBay
They have two DPSS rigs (green/blue) inside that somehow?
I agree with things, this thing seriously needs an analog board!

+Fiddy Rep for the time and all your other good posts LOL

 

[Fiddy]

No worries man

Whats different about that 1W RGB?

And ill be amazed if that 500mW has a 473nm DPSS in it for that price.

 

[LaserCo]

Whats different about that 1W RGB?

Well, your unit positively only has ONE red, the 1W one says it has:
red 650nm 200mw + 638nm 250mw

And ill be amazed if that 500mW has a 473nm DPSS in it for that price.

I would be amazed also, yet they seem pretty clear with all the different wavelength's
as advertised.. I do not think it is any misunderstanding on their part.

 

[LarryDFW]

I am setting one up with two Panasonic 3400mah cells in one of my carriers for portable use.

These should allow for several hours of operation.

I tested it outside after dark.

Power with the two 3100mah cells in the carrier was 500mw with all lasers on.

Tested the Green alone & was impressed by the low divergence.

Much better than any other green I have.

LarryDFW

 

[LarryDFW]

I think the one I am selling, is a different model.

It has actual adjustable dichroic mounts:

These should allow better far-field alignment.

LarryDFW

 

[LaserCo]

Thank you for the picture Larry, do you actually mean that you bought one and are now selling it?

your pics are of the same techhood unit (as advertised 400mW) that fiddy got in post one?
RGB 400mW Laser Module/Combined Laser beam of 532nm+660nm+445nm/White Laser Beam | eBay

Fiddy if I did not thank you before, thanks a lot for all those revealing shots!

 

[XrayX]

Hi everybody when i see this Beautifull thread and picture i get a call from dhl for my 400mw rgb unit.
I've juste receive my rgb today but from olike.

It's a different unit no sticker on but holes for ventilation.
And i want to know if your alignment are like mine. I post a photoshop shape of my spot, for 5 meter it's okay but for 10 its what i see with my eyes.
Nice picture fiddy

Edit:the beam and the dot are blue and not withe like fiddy .
Unplug the blue i get yellow it's normal.but not so powerful.
Olike say 1A input but with the 3 laser i got 640 mA
285mA for blue
240mA for red
340mA for green

Fiddy can you mesur your unit for me please?
And each color.

 

[Teslanium]

I like this! Would/could it be a candidate for a group buy?

T.

 

[vk2fro]

I reckon you could (with some crafty machining - i.e. a small baseplate) bolt a set of scanners right up to the front of one of these, stick it in a box, add ilda ports or a show card, and you have a very cheap laser show scanner indeed.

Be a great testing scanner - I might buy one of these and some 30K scanners just to experiment with - I dont want to risk damaging my DT40 widemoves!

I mean c'mon, who wouldnt want 400mw, or even 1W of laser show in their living room

I bet it can light a match, or even a cigarette *cough cough* LOL

 

[jcranmer]

Anyone have a us source for the 18650 battery holders? Or for that matter does any one have one to spare?

 

[LarryDFW]

Anyone have a us source for the 18650 battery holders? Or for that matter does any one have one to spare?

I have these available for $2 each (prepaid in con US for 2 or more),

or with two Panasonic 3400mah cells for portable use.

These should allow for several hours of operation.

LarryDFW

 

[The_LED_Museum]

Looks like I'm gonna have to pull the trigger on this one...BBS...ok, done! aypal:

This will be my first 'white light' laser (I have a Reke 500RGB laser show unit, but it doesn't provide a white spot where all three lasers are energised simultaneously for more than a second or two tops).

 

[vk2fro]

(I have a Reke 500RGB laser show unit, but it doesn't provide a white spot where all three lasers are energised simultaneously for more than a second or two tops).

Actually it will - apply 5v to the modulation inputs of all 3 lasers at once, and short the ilda interlock pins on the 25pin ILDA dsub.

BOOM white beam, full power.

Just be careful where you point the projector when you do this. Its now become in effect a big laser pointer, doing circa 500mw, and a reflection wont be stopped by anything but rgb goggles. And it may start a fire if it hits something like cloth curtains (trust me, I've done it before with a 800mw PJ!)

 

[Atomicrox]

Sorry to bump this thread but I'd to get one of these and have a few questions to Fiddy/other owners:

-How many amps does the whole thing pull?
-Does it have a duty cycle? The feebay page implies it can be run continously..
-Is the 445nm single mode?
-Does it stay "well aligned" (i.e. white) at a distance?