Another DIY LED lighting

[Jameshong]

After the 1st LED lighting since last years and the result is good so decided to another one with 35 LED for better coverage for my tank.

All stuff just gathered yesterday morning and started my process of diying now and expected to complete by next week includes of testing.

Here are the update;

3mm Aluminum plate with drilled hole for wiring

Adhesive tape for Star MCB, Bond-Ply

Customised Acrylic sheet from DAMA.

[Jameshong]

Process and progress of boxing up the acrylic sheet. 3/4 done and will do the wiring once completed.

[comycus]

Great step by step DIY in the process! will be following this thread closely

[RockyBoy]

Nice layout. Any fans to remove the heat?

[orsony]

What is the esitmated cost for you new LED setup? How many driver r u using? R u using any Heat sink to disperse the heat?

[Jameshong]

Nice layout. Any fans to remove the heat?

yes . 2 LCDTV fans in corporated to reduce heat !

[Jameshong]

What is the esitmated cost for you new LED setup? How many driver r u using? R u using any Heat sink to disperse the heat?

Est <750. for entire 35 LEDs fixture of 4xUV, 13xRoyal blue and 18xPure white.

Currently plan is 2 Meanwell Power supply with extra input for 3rd Power supply ready. Which meant 1 Power supply for 22 LED (parallel, 700mA/ string) and othe other is 1400mA/string for 13 LEDs. When neccessary, I'll add one more power supply to become 11 by 11 by 13 .

Same as my previous design...I'll be using 2 fans to disperse the heat and I think it's sufficient to do the job .

[Jameshong]

Update...

Drilled 5 holes at each side for ventilation.

Glued the side panel. Glass panel inserted for testing.

Top view.

[albinosage]

Wow, this is a very neat and tidy DIY project. Can't wait to see the completed product! If only I had the knowledge and skills to build such projects haha.

[comycus]

Wow, this is a very neat and tidy DIY project. Can't wait to see the completed product! If only I had the knowledge and skills to build such projects haha.

I agree. The build looks great and I'm sure the finishing will be first class! Really hoping to learn some tips here n maybe gather up enough courage to build one myself. So many shifu here, anyone care to accept me as disciple?

[jyoon]

This is great. Will follow this post closely.

[BarraCudaTM]

Est <750. for entire 35 LEDs fixture of 4xUV, 13xRoyal blue and 18xPure white.

Currently plan is 2 Meanwell Power supply with extra input for 3rd Power supply ready. Which meant 1 Power supply for 22 LED (parallel, 700mA/ string) and othe other is 1400mA/string for 13 LEDs. When neccessary, I'll add one more power supply to become 11 by 11 by 13 .

Same as my previous design...I'll be using 2 fans to disperse the heat and I think it's sufficient to do the job .

You may want to re-consider driving at 1400mA, it would severely reduce the lifespan of the LEDs

[Jameshong]

You may want to re-consider driving at 1400mA, it would severely reduce the lifespan of the LEDs

Thanks for your advice.

Meanwell Power supply can vary the current so I may reduce the 1.4A to 1A instead.

[nobody]

Nice diy! Your aluminium sheet will probably become very warm, especially if those LEDs are driven at 1A. Personally I would use a beefier heatsink.

[nobody]

Also, it is not a good idea to drive strings of LED in parallel......Unless those LEDs are carefully matched with similar forward voltage.

[Jameshong]

Nice diy! Your aluminium sheet will probably become very warm, especially if those LEDs are driven at 1A. Personally I would use a beefier heatsink.

Hi bro,

not to be worry as my current 22 LEDs fixture is driven at more than 1A with 2 fans and the temperature is not more than 30 degree. The in and out of my airflow is 44 cfm which is sufficient to disperse the heat lor .

[Jameshong]

Also, it is not a good idea to drive strings of LED in parallel......Unless those LEDs are carefully matched with similar forward voltage.

For parallel, I 'll incorporated current mirror circuit to protect and balance up the current evenly to each string which I have done on my current LED lighting.

No issue for me .

anyway, for this new project...i built in spare DC input connector in case I change my mind and drop off parallel stringing .

[Jameshong]

Progress updates.

I have completed the acrylic case and from now onward, I'll be working on soldering, wiring the LED.

Top panel

Top panel with Fan

Rear cover

glued the top panel to the main body.

top view

Front view

Completed view.

4 DC input connector, White, Royal Blue, Fan and 1 spare.

[Jameshong]

LED layout

Plan may vary slightly after actual testing.

[Jameshong]

Wow, this is a very neat and tidy DIY project. Can't wait to see the completed product! If only I had the knowledge and skills to build such projects haha.

Hi bro,

Trial and error la. ..sure can gain Knowledge and skill from there onward mah !

You wouldn't know whether can or not, unless you try hor !

[reefcrazy]

I wonder why you chose acrylic as the housing material. Can it take the heat?

[sherman]

Be very careful when driving at more than 750 mA.

Take your temperature reading the LED junction ,not the

star or the mounting plate.It can be very misleding.

Nice job

[Jameshong]

I wonder why you chose acrylic as the housing material. Can it take the heat?

FYI, Acrylic is typically processed at 240–250 °C when manufacturing so I dun think 35 LEDs heat able to melted it .

From my past experience, It should not more than 40 degree with fan switching on .

Why acrylic? Light weight, hard, many colour to choose from, cheaper and most important is that you can design, customise and to glued it yourself(DIY) !

[Jameshong]

Be very careful when driving at more than 750 mA.

Take your temperature reading the LED junction ,not the

star or the mounting plate.It can be very misleding.

Nice job

Hi Sherman,

I know what you mean !

.

[Jameshong]

Dated : 9th August 2009..................Happy Birthday to my WHITEY !

Finally.....My baby Whitey was born !

Delivery Time : 2330

Here the handsome guy looks ...