View Full Version : Lighting/ LED nano led help?
cg5071
12-01-2010, 12:02 PM
ok these are some choices I have and I have a couple of questions too. Which of these would be best for a 5g hex nano tank? Low voltage or high, which is better? I also need to know just how I should wire these together so I have 1 plug instead of 3-4. I am also open to other cost friendly simple options like a single driver that would do the same as 3 of these or so. these lights below will only be 30-50 dollars depending and I would like to keep cost in that range.
 The canopy on the hex really only leaves an area of 4" x 9" for the lighting and I will be modding the existing canopy. I want as much light as it will take to be able to grow anything. Tank is about 1ft tall.
3w high power led+high power driver(AC60 to 240v)+led and lens included. Which lens if any? available in 30' 45' or 60 Heatsink is also included in each little kit. 18g wiring leads
5w highpower led+low voltage DC12v driver+lens and sink
5w highpower led+low voltage ac85 to 265v driver+lens and sink
 Which would be best useable light and easy to wire to 1 or 2 switches. I can request the color light I want. warm or 6700k or 450-470nm blue.
jolson10450
12-01-2010, 12:12 PM
what are you asking?
cg5071
12-01-2010, 12:24 PM
With the dc 12v could I just wire all 3 or 4 lights to an AC adapter to plug into mains?
cg5071
12-01-2010, 12:25 PM
I was editing lol.
evilc66
12-01-2010, 06:54 PM
Your first post is still incredibly confusing. If you are looking at some specific products, post links.
cg5071
12-01-2010, 07:05 PM
it is a pdf that is too big to post. I will pm it to you though. just a sec. Thanks.
cg5071
12-01-2010, 07:31 PM
Sent a pm but I couldnt send the pdf. 
Those are each a kit that is listed with the voltage they had next to each one.
A 3w and the other 2 are 5w kits.
cg5071
12-02-2010, 08:31 AM
Never mind about these. I think I have it,lol or most of it. I did a calculator type thing online and it said I could use a DE or DI model of a buck puck. It comes out just over $60 for what I want and I believe it will be easier. 
 I am still confused about one thing though, the power supply. I will have to do some more reading to see what I need in that area. Not sure if I need a special box like I saw or if I can power it with a plug and cord like any 12v adapter.
evilc66
12-03-2010, 10:19 AM
You will need a power supply that has an output voltage that is at least 2v higher than the forward voltage of the LED string for the Buckpuck to operate properly. Because the LED limit on the Buckpuck is 6 LEDs in series, a 24v power supply is usually more than enough. At that point, you only have to worry about the amount of current capacity that you need.
cg5071
12-03-2010, 10:55 AM
To run both a blue and a white light I should use that splitter thing you have on nano customs? That is the only place I have seen that equipment. OR If it is a similar price I should just get a second puck? 
 The current capacity would be the rating of the puck? 1000mah? the stars are 350 but can be run at 1000. That is my understanding of this.
 Add the FV of all the lights? either 3 or 4 in this case.
evilc66
12-03-2010, 11:54 AM
If you want separate control of each color, you have to run separate drivers. No way around that. There is nothing stopping you from running both colors on the same driver though, but you lose some control.
The power supply should be rated higher than the device that it is connected to. If you run a 1000mA Buckpuck, you would want a 1.2A or greater power supply. If you run multiple drivers in parallel, then you add the currents of each device together. Be careful with the current on the LEDs. Not all LEDs are designed to run at 1000mA. Cree XR-E, XP-E, and XP-G LEDs can be run that high, as can Luxeon Rebel LEDs (there are more, but these are common, current generation LEDs). Cheap Chinese LEDs can't.
You always use the added forward voltage of all the LEDs in a series string. As long as that total is under the limit for the driver, you are good to go.
cg5071
12-03-2010, 12:01 PM
Great thank you. They are cree that I was looking at. I was paying attention to the numbers to get an idea of how this is done. LOL I am sure I can handle it once I get my facts straight. Can be confusing though especially after looking at so much stuff. 
 I I dont need to controll these leds yet so that part is ok. I saw somewhere that you recomended certain crees(xre or xrp I dont remember exactly the different ones) for whites as they were brighter or better color or something?
evilc66
12-03-2010, 12:23 PM
There are a number of LEDs that will do the job, but the latest movement is using neutral white LEDs opposed to cool white for better color rendering. You need to use more blue though to balance the color. If you aren't going to use dimmable drivers stick with a 2:1 ratio of blue to white.
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