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Search: Keyword(s): ; Posts Made By: genocdex
Forum: DIY 07-30-2014, 05:21 AM
Replies: 38
Views: 1,040
Posted By genocdex
All those leds ive ever dealt with have a voltage...

All those leds ive ever dealt with have a voltage drop of around 3.2v @700mA. So 10v would be fine. I still stand by my diy driver I think I build them for 6$ each not including shipping for each...
Forum: Plants 07-30-2014, 04:06 AM
Replies: 1
Views: 147
Posted By genocdex
plant id please

http://www.aquaticcommunity.com/fishpictures/showfull.php?photo=23970

any ideas what this is? i bought it when i first started doing plants, but it never really grew much. but since i moved it...
Forum: DIY 07-30-2014, 03:22 AM
Replies: 38
Views: 1,040
Posted By genocdex
holy heck that might be even more difficult to...

holy heck that might be even more difficult to do, unless you want to use 4 different drivers... unless im missing something else here. because at 700mA each branch, that would give you 11.2A...
Forum: DIY 07-30-2014, 01:25 AM
Replies: 38
Views: 1,040
Posted By genocdex
i havent read threw all those data sheets yet,...

i havent read threw all those data sheets yet, but if you plan on doing 16 x 3 then you are pushing the ldd-700H to its limits as for output. i would much rahter see you do 6 x 8. that would give...
Forum: DIY 07-29-2014, 11:18 PM
Replies: 38
Views: 1,040
Posted By genocdex
thats a p channel mosfet, so you would need...

thats a p channel mosfet, so you would need negitive voltage on the gate to operate. i use the 50n06l and it works great. its a N channel power mosfet with very little internal resistance.

heres...
Forum: DIY 07-29-2014, 09:09 PM
Replies: 38
Views: 1,040
Posted By genocdex
ya know no one has asked this yet. what kind of...

ya know no one has asked this yet. what kind of voltage supply will you be using with these leds? ive used spare laptop ones for more of mine. but with all these drivers you will still need a good...
Forum: DIY 07-29-2014, 08:47 PM
Replies: 38
Views: 1,040
Posted By genocdex
you are correct, but he already has an arduino...

you are correct, but he already has an arduino that has the capability of pmw
Forum: DIY 07-29-2014, 08:00 PM
Replies: 38
Views: 1,040
Posted By genocdex
you can always just use a mosfet as a switch,...

you can always just use a mosfet as a switch, just need to account for about half a volt of drop for it to work right. i think most power mosfets are rated at high voltage and current. they work...
Forum: DIY 07-28-2014, 07:36 PM
Replies: 38
Views: 1,040
Posted By genocdex
as i stated they CAN be efficient if you know how...

as i stated they CAN be efficient if you know how to configure them. thanks for posting a picture for it... TBH mine is a little different but the same idea is there. its a cheap and solid driver. ...
Forum: DIY 07-28-2014, 06:53 PM
Replies: 38
Views: 1,040
Posted By genocdex
Well im not looking for help with those leds just...

Well im not looking for help with those leds just a point I made. As for the diy driver I used a small mosfet based cc driver that had an npn feedback to help regulate the current. They work very...
Forum: DIY 07-28-2014, 06:01 PM
Replies: 38
Views: 1,040
Posted By genocdex
why not make your own driver? its not too hard...

why not make your own driver? its not too hard to make if you configure it correctly. that and you arent stuck to just 700mA if you decided you want to lower/raise it. also its perfect for arduino...
Forum: DIY 07-28-2014, 07:41 AM
Replies: 3
Views: 382
Posted By genocdex
I did a similar set up. I used some of that...

I did a similar set up. I used some of that plastic that comes with glass tops. Cut it to size and used 2 suction cups I had laying around to hold it it. Kept all the plants to one side. Then I...
Forum: DIY 07-26-2014, 07:11 PM
Replies: 23
Views: 693
Posted By genocdex
Why not use peristaltic pumps instead? I bet...

Why not use peristaltic pumps instead? I bet they are more accurate and no back flow
Forum: DIY 07-26-2014, 12:42 AM
Replies: 15
Views: 549
Posted By genocdex
well for my 55g Very high tank i was look at 60W...

well for my 55g Very high tank i was look at 60W of leds with 30* lenses... from the other research i was doing it should give me more than high lighting
Forum: DIY 07-25-2014, 07:32 PM
Replies: 15
Views: 549
Posted By genocdex
well i guess ill give these as is a try see how...

well i guess ill give these as is a try see how well it works. and if i need to up the light ill throw another set on here as well i guess. i am planning 3 55g lights (2 low 1 very high) but i...
Forum: DIY 07-25-2014, 06:49 AM
Replies: 15
Views: 549
Posted By genocdex
So you think im allready where i want to be with...

So you think im allready where i want to be with just the 3 leds w/o optics? The leds, if no optics will be about 1" abover the water. If i add any of the potics ive seen then the would be 2". ...
Forum: DIY 07-25-2014, 03:59 AM
Replies: 15
Views: 549
Posted By genocdex
the way my driver is designed i would need to add...

the way my driver is designed i would need to add leds in sets of 3. so would 6 xpg's with no optics give me a good light to grow low light plants? i want it to be on the higher end of low tho
Forum: DIY 07-25-2014, 12:52 AM
Replies: 15
Views: 549
Posted By genocdex
well i have 60* optics i can throw on them. but...

well i have 60* optics i can throw on them. but after i did the math i think ill be making dark spots further up where the ferns would be
Forum: DIY 07-25-2014, 12:36 AM
Replies: 15
Views: 549
Posted By genocdex
11" its a standard 10g tank with 2" of...

11" its a standard 10g tank with 2" of gravel
Forum: DIY 07-24-2014, 09:14 PM
Replies: 15
Views: 549
Posted By genocdex
its diy. they are on a 1.5" x 18" x 1/8" alum...

its diy. they are on a 1.5" x 18" x 1/8" alum stock. spacing is 4" from the sides and 5" between each led. so it looks like this:


[----X-----X-----X----]

as i said im just using hoppy's...
Forum: DIY 07-24-2014, 08:38 PM
Replies: 15
Views: 549
Posted By genocdex
do i need led optics on a 10g tank?

i was just wondering if i should even bother with led optics for my 10g tank. i currently have 3 xpg leds running at 1A. i was using hoppy's par calculator spread sheet and its telling me at 120*...
Forum: DIY 07-22-2014, 05:47 PM
Replies: 4
Views: 232
Posted By genocdex
yea i think the ones i got where meant for a...

yea i think the ones i got where meant for a flash light. im going to be scaling this up to a 55g soon and since ill be able to buy 100 of these im going with the 20mm star base. i was just worried...
Forum: DIY 07-22-2014, 05:35 PM
Replies: 4
Views: 232
Posted By genocdex
sorry i missed that part. i used a thermal glue...

sorry i missed that part. i used a thermal glue that is made of silicone and silver. ive used it before on my low budget cheapy leds (ya know the 30 cent/per china special) and it worked great for...
Forum: DIY 07-22-2014, 05:30 PM
Replies: 4
Views: 232
Posted By genocdex
any one with cree xpg r5 experience

i just want to make sure these leds are preforming like they should. i have them glued to a nice 19" x 1.5" x 1\8" aluminum stock to test how well they are with heat. im using one 3 of them on this...
Forum: Fertilizers and Water Parameters 07-20-2014, 06:53 AM
Replies: 10
Views: 523
Posted By genocdex
I have to say when i switched over to co2 only i...

I have to say when i switched over to co2 only i liked the growth until i had a bad diatom break out in my tank. My water source has high silicates so im trying both as an aglicide and prevention...
Showing results 1 to 25 of 153

 
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