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YzF

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Everything posted by YzF

  1. FnM has something similar that I bought. Check it out
  2. I have 2 pcs of Yuma for sale. 1st Size bigger than 50cent before expanding $40 2nd pcs size of 50cent before expanding. $35 Collection in Punggol area. Interested parties contact via pm.
  3. Good gesture, unfortunate for me that I'm oversea.. Sent from my A0001 using Tapatalk
  4. I found the pic. too big and too many for me. Thanks for the offer.
  5. No one has overgrown F.Rics to let go? Looking at mulitple colors if you have. Especially yellowish one. I also have some pretty rare blue zoa to trade if you prefer. Pm to discuss.
  6. Hi all, Looking to start the collection of Florida rics, so pls let me know when you have frags to let go. I am open to almost any color avail. Pm to deal. Thanks!
  7. Hi all, Looking to buy some sand for my nano tank. A bag is too much for me, so i am trying my luck here to see if anyone have some to spare. Pm the details. Thanks!
  8. Another piece, but you get the picture
  9. Hi all, I have a Yuma that i would like to swop for Zoas frags. The yuma is slightly bigger than a dollar coin. The picture is the best i got. But there are actually 2 color, Orange on a Green base. Depending on the type of Zoa frag, I might be asking for 2 frags. Interested parties, pls pm me and we can take it from there. Thanks!
  10. Hi, i am interested. Pm you. thanks.
  11. Hi guys, Looking for some Live/dead rocks to start off my new nano tank. I know LFS sell them but am hoping some of the reefers here have some cured one to spare. Small ones are fine too. Pm the details. I will go collect at your convenience. Thanks!
  12. Only 1 LFS carry Zeovit? Im looking for Zeobak, but its out at FnM.
  13. Basically, what it is what you have seen on YouTube. Depending on the size, You can also 'chop' it and stick them to bigger rocks or structure. I personally like to leave a bit of rocks behind the zoa so the glue have more to grip on. Softies will produce a lot more slime than SPS. So glue might not work the first few time you try. Practice on cheaper zoa first!
  14. Pls let me know the contact as well.. Need a few options. I looking at a 'comeback' tank.. It for my new place after a long time..
  15. Hi, I was a T5 user and had great success using those several years back. I since stopped reefing due to commitments. I am thinking of starting another tank soon and is also looking at LED lightings for the new tank. I would also like to ask the same qns as the original thread starter. You were saying the cost of the LED fixture is same as replacing with ATI tubes, may I know where can I find these LED fixtures? According to what I have researched, the par is not the problem. SPS can thrive under these LEDs as what I have seen on other threads. But, the overall look might be different. Like the look of T5 is different from MH. Also, as I like to keep softies as well, I'm worried about the Ric under these LED lights. How about Zoa? Can they do well under LED? LED really has quite a few advantages that are hard to beat. Sorry to tag along!
  16. YzF

    LED Panel

    2 barra here? I have a better idea now already. I still dun know which dimmable driver to use best for the application. How much does a Meanwell cost? Can order in arrays ah?? Never come across leh.. i search again.. Let me read some more first.
  17. YzF

    LED Panel

    Hey Barra, How come your post only 9 har? I tot i remember you were around when i still have my old tank.. Haha.. Anyway, dun matter who reply the post ah. Thanks by the way. I am still trying to configure the light setting so the number to LEDs are not firm up yet. Mainly the cost of the lightset is a concern. Different configuration have quite a different cost. Mainly due to the number and type of CCD used. I was reading somewhere that the main disadvantage of connecting LEDs parallel is that there is a risk to losing all the LEDs. So a mirror was incorporated to protect the parallel circuit. But i got no idea how to do it. So i guess i have to stick to having the series for now. It seems that the normal configuration for color is 1:1. Normally 2 circuit will be up. 1st circuit control white LED and the 2nd control blue. With this configuration, it also gives control for dawn to dusk effect simply with timers. However, i'm worried that the blue will be too bright at night. That why i was thinking of having a separate blue LED for night and the rest of the LED controlled by just 1 circuit. Noob question: For 6 LED (SSC P4), connected in series, total power is 3.75V*6=22.5V, 700mA*6=4.2A If using output of 24V DC 4A, 1) What happen to the additional 24-22.5=1.5V? 2) 4A cannot meet 4.2A requirement. So the LED will be running slightly lower than 700mA? 3) If i run 5 LED bulb instead, it become 3.75V*5=18.75V, 700mA*5=3.5A, then what happen to the additional amperes? It will be controlled by the CCD? I also wish to install a dimmer to control the LEDs. I only know is by PWM for now. How to install it? Paiseh.. to ask so many questions.. but will have more...ahahahah
  18. YzF

    LED Panel

    Thanks Jameshong! I have been reading for the past few days. *Headache* But there are still some things that i dun understand due to the lack of electrical knowledge. Can help me to see if the steps below is correct? I will most probbably be mounting the LEDs to a aluminium sheet with 2 fans on top to help with the heat. Let say i wanted to DIY a 10 LED (SSC P4) LED lightset and a 1 pc LED (Royal blue) for night light. Each LED is about 3.75V and drives at 750mA. Then how to drive the single LED separately In order to choose a correct DC input, then calculate power consumption 3.75*10=37.5V and 7.5A I know I need a Constant Current driver to drive the P4 at 750~1000mA. But how many do i need? So i need to find a DC adapter to fit 37.5V and 7.5A? Or fit the Constant Current Driver? I also need to add in fans. These are normally at 12V. So in order not to use another DC adapter, I need to connect 2 fans in series? With means that the total power consumption become: 37.5 + 24 = 61.5V and hence i need to find a DC input with this rating?
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