My LED homemade showerhead

[ahorton]

My LED homemade showerhead + beamshot added

Ooh it's scary in here! I've never been over in this part of the forum.

But I thought I might show a few pictures of the LED showerhead I'm making:

The black thing is 2kg of aluminium with about 2.5 x 10^5 mm^2 (400 sq inches) of useful surface area.

 

[Nos]

OMG dont tell me you are going to use six SST-90s

 

[DM51]

OMG dont tell me you are going to use six SST-90s

Wow! Is that what those are? This will be an amazing build...!

 

[kramer5150]

WOW... great work thus far!!

 

[AnAppleSnail]

Since you're powering 6-7 SST90s, add a fan.

 

[TheTest]

Nice! Not what i was expecting from the title , if thats going to use your 30mm aspherics (is it?) it will be an absolute monster, and will far surpass any conventional "showerhead" type light in output and throw. What are you going to power it with?

 

[tsask]

Nice! Not what i was expecting from the title QUOTE]
Me either. I was thinking of one of those 5mm "lunar white" LEDs.

This LED showerhead is an excellent idea! Well done!
Thanks for those pics! looking forward to more

 

[ahorton]

OMG dont tell me you are going to use six SST-90s

Indeed! Top bin too.

Since you're powering 6-7 SST90s, add a fan.

Maybe. It does have a lot of heatsink and will usually only get used for a few minutes at a time. If the thermal switch goes off too often then I will throw a fan on the back but I prefer to have passive cooling.

Nice! Not what i was expecting from the title ,

But you clicked anyway! This forum needs more people like you!

if thats going to use your 30mm aspherics (is it?)

Actually these are 39mm lenses to try to tighten the beam from a 3x3mm die just a bit. I almost used my 30mm lenses but I figured the thing would have to be this big anyway to deal with heat so I might as well use bigger lenses.

it will be an absolute monster, and will far surpass any conventional "showerhead" type light in output and throw.

I hope so!

What are you going to power it with?

At the moment, just some linear regulators and I'll restrict myself to a battery (probably a vehicle while turned off)

Eventually I'm going to have to turn the vehicle on and deal with fluctuating voltage and surges etc. I like the look of Der Wichtel's new driver, but I have yet to establish that it will be ok in an automotive application. I'm also short on hobby cash so it will have to wait.

 

[TheTest]

Thanks for replying, I've also been eyeing Der Wichtel's new driver, got an sst-90 that needs current-regulated feeding .
Excellent design btw, i was wondering how to make a practical multi sst setup with some throw, looks like you've done it.
I hope you get it running so that i can stare longingly at the beamshots (hint hint)

 

[ANDREAS FERRARI]

I'm anxious to see how this turns out.I hope you can post photos when your finished.

Ooh it's scary in here! I've never been over in this part of the forum.

If you think this place is scary than you should stay clear of "The Dark Room"

 

[IMSabbel]

If you are only using it for a few minutes at a time, the mass itself should be fine.

But for prolonged use, it will not be stable.
Maybe you could just trigger the fan by the thermal switch, i.e. only use it if you keep it running for prolonged time?

 

[papajoe]

Clever title, actually - got my attention immediatley.

C'mon now, keep busy. All eyes are upon you.

I admire the design thus far - great sink and fins to dissipate. Fantastic. Using equilateral triangle array for maximum density in the head. Outstanding.

Thanks, I'll watch carefully for this one. Joe

 

[bobo383]

I love the revolver-cylinder look, "Makes my day"!

 

[kingofwylietx]

Definitely not what I expected from the title...I thought it would be a bunch of old-style leds.

I really llike what you are doing. Please post beam shots when you finish.

Very cool!

 

[mrartillery]

+1 on some beamshots, I can imagine that this will be a beast when completed. Nice build. :thumbsup:

 

[JulianP]

Make sure you don't point it at airplanes :naughty:.

 

[fyrstormer]

Skip the fan, machine the fins in the shape of turbine blades, and motorize the head instead. Gatling Light! MWAHAHAHAHAHA!

 

[RAGE CAGE]

Skip the fan, machine the fins in the shape of turbine blades, and motorize the head instead. Gatling Light! MWAHAHAHAHAHA!

Now THAT would be a true DAZZLER/Puke light if it didn't burn your eyes out first :sick2:

 

[Kestrel]

Maybe you could just trigger the fan by the thermal switch, i.e. only use it if you keep it running for prolonged time?

Excellent suggestion. God, I can't wait to see what this thing will do with aspherics.

 

[ahorton]

I powered up 3 of the LEDs.

Intensity according to my cheap DX Lux meter was about 6x what I get from and XR-E R2 at 1A behind my 30mm aspheric.