DIY led build and test

coreywebster said:

For like 1ft by 2ft it should work

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Ruzz1974 said:

1ft by 2ft ???...... My tent is 70cm x 70cm so basically 4 square ft... Which equates to around 25 watt per ft, I think it'll just about manage with the light at optimum height. The fixture is 60cm so it has reasonable coverage.

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coreywebster said:

I deleted my post because your par map wasn't shockingly bad.

25w per square foot is a bit less than ideal with the highest efficiency diodes, which yours are not. That's why I said 1ft x 2ft, 50w per square foot with those household bulbs should be enough.

You'll have to flower in it and find out

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coreywebster said:

Well 2oz off 75w ain't nothing to complain about.
Well done.

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So I've built a DIY led set up which is rated at just over 100 watt draw from the wall, I downloaded the ppfd app and did some calculations, the bulbs I chose range from 2700k to 6500k 1500lm but mainly concentrate aroung the 4000k range (veg). Let me know what you think, will it suffice? I got some seeds from this site. Just one thing as you've now got me thinking lol, if my next plant doesn't fill my space I may consider reducing the footprint to increase the watt's per ft, god I hate this hobby, theirs always something to play with ha ha.. Thanks for your input.

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Smokezz420 said:

I love these DIY led setups, I am going to try soon. I have been using branded ones but they are so pricey. Thanks for sharing your design

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Ruzz1974 said:

Thank you and your welcome, I've just switched the middle red/blue light for another osram 4000k 1521lm bulb and it has improved the par chart a little more, don't believe I really needed the b/r lamp as I have the spectrum needed anyway, lux is around 45k.. May play around tomorrow and try and improve the distribution so that the map is more uniform aroung the edge.. As I said earlier I will get a dedicated unit eventually when funds allow, we've just emigrated recently and I'm watching the £££ until we know how things are, little by little and my wife won't notice lol. Attached is the new chart after swapping the bulbs around.

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Ruzz1974 said:

We moved from the UK to Eastern Europe, my wife is originally from there and has all her family around, it's something we needed to do after going through alot. Where you based pal?

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coreywebster said:

I'm a Yorkshire man fella.

Big move for you! Interesting new pastures though.
I take it you speak the language?

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Ruzz1974 said:

Little my friend, I was born in donny lol and lived in Mansfield all my life so not far from you hey .. We went through a life changing experience 3 years ago and felt it better for my son to be here where most his family are (he lost his teenage brother and sister in a tragic accident) he was only 8 yrs old, where all getting there now... Home medicine helps where in Yorkshire are you from?

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coreywebster said:

Well I sorry to hear all that .
Hope if all goes well.

I won't say where exactly I'm from .
But my dad was born n raised in Donny .

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Ruzz1974 said:

So I've built a DIY led set up which is rated at just over 100 watt draw from the wall, I downloaded the ppfd app and did some calculations, the bulbs I chose range from 2700k to 6500k 1500lm but mainly concentrate aroung the 4000k range (veg). Let me know what you think, will it suffice?

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Southernontariogrower said:

if anything it will be a good veg light! Wtg! Looks good!

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