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Bernard

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Everything posted by Bernard

  1. Any bro/sis here encounter Daeil Fish Cooler chiller unable to start up? What might be the cause, is there anyway I can solve the problem by diying? Or if any home repair service technician to recommend? Thanks in advanced.
  2. Thanks but where is this Marine Depot locate??
  3. Out of stock lei that why headache.
  4. Hi All, Need some help getting the above. Thanks.
  5. But please take note, do not over dose. the aluminium from the product is very small if worry use 50% of the recommended amount. that is what I'm doing. I have been trying all the expensive brand and it can't bring down my Po4. so I end up try phosguard and within 2 weeks my Po4 down to zero. without trying it you won't kown the effect but try in small amount and monitor your Po4.
  6. Have been using it for close to 2 years liao, no problem.
  7. I have try some of the Po4 remover product and found that Seachem Phosguard is the best to help me remove Po4 in my tank. so far been using it for coming to 2 years.
  8. Sorry to ask, you means you dose Seachem Ca and Reef Builder powder directly into your tank?
  9. got mine from BioPlast blk22 boon keng rd #01-23 (330022) K T Tan tel:62964916/62964919
  10. http://led.linear1.org/led.wiz hope this help
  11. transparent blocks where to get from and how it look like and how you waterproof it ?? Getting intresting and more headache
  12. Try this one, have lot of info that I catch no ball http://led.linear1.org/led.wiz
  13. Thanks Bro's, This is really a chim thing to knock head The problem is that, I need to use back the 24vDC/AC transformar to power up is because I can't even located where the transformar is So bopian have to use back lor.
  14. Chim don't get it my transformer is already out put at 24dcv.
  15. $15 Just the LED going to cost me 300 over dollar? ok btw. the confusing part is, it said it need 1.2k resistor and then 1w resistor again. So is that means I need to connect both 1.2k and 1w resistors to the LED or either 1 will do?
  16. Thank you guy's, But the problem is that I have no way to pull out the wiring and redo the whole set up. So now have to make use of the set up. I went down to sim lim tower few days ago and was told to use a high wattage 5w resistor with a 3 to 4.5v 10mm LED. when I first connected up everything seem fine. But half an hour later the LED just went out. I went to this web site and the result I get is this. http://led.linear1.org/led.wiz 24 Source voltage 3w diode forward voltage 20 diode forward current (mA) 1 number of LEDs in your array Solution 0: 1 x 1 array uses 1 LEDs exactly +24V R = 1200 ohms The wizard says: In solution 0: each 1200 ohm resistor dissipates 480 mW the wizard says the color code for 1200 is brown red red the wizard thinks 1W resistors are needed for your application together, all resistors dissipate 480 mW together, the diodes dissipate 60 mW total power dissipated by the array is 540 mW the array draws current of 20 mA from the source. And now I have no idea what all the numbers above means.
  17. Hi All, How can I design an LED array that can be driven effectively from my transformer? Need some advise from you guru out here. I'm thinking of replacing all my light blub to extra bright white LED but don't know how. I'm totally know nothing about electronic stuff and hope that can get some advice here. My 24VDC 5w light blub are connected in parallel and the power transformer is 24VDC 500mA. Is there any LED can take the load of my transformer? Thanks, Bernard
  18. Hi All, Need some advise from you guru out here. I'm thinking of replacing all my light blub to extra bright white LED but don't know how. I'm totally know nothing about electronic stuff and hope that can get some advice here. My 24VDC 5w light blub are connected in parallel and the power transformer is 24VDC 500mA. Is there any LED can take the load of my transformer? Thanks, Bernard
  19. Thanks great info. Now have to figure out how to lay out the LED to make it evenly shine in the tank.
  20. MAy I check with you if there's any directional for the resistor and is there any positive and nagative for the LED? Planing to DIY but not sure about electronic. Thanks.
  21. As long it can fit into the 6" reflector then I won't have a problem liao. And still in production for a long time.
  22. I have checked around but having problem to find a blue one. only LFS have but don't have the size I want.
  23. Now I'm facing another problem is, how am I going to get a blub that is blue in colour and about the same size to fit in my Atman MP1000 casing. T5 and 8 can forget it.
  24. ya loh. today went down to Jln kuyu to get some spare once use up have to mod liao.
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