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danlu_gt

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danlu_gt last won the day on January 18

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About danlu_gt

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    Sailfin Tang

core_pfieldgroups_99

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    Hillsboro

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  1. danlu_gt

    UV LED flashlights

    Most corals that flourecesent to Royal blue (450nm) will also flourecesent with 395nm UV, just the intensity maybe different. With 395nm, you won't get the overwhelming blue color. For serious coral photography, I was looking into getting UV blocking filter (blocks 400nm and lower) then take pictures with 365nm light source. Unfortunately, pure UV filters are super expansive. Sent from my SM-N950U1 using Tapatalk
  2. danlu_gt

    QT, coral grow out system

    Or a small indoor swimming pool. [emoji23] Sent from my SM-N950U1 using Tapatalk
  3. danlu_gt

    QT, coral grow out system

    My brother is really into kois. He is working the manufacturer to ship these QT system to his Altanta warehouse for Atlanta Koi community. This one pictured is about 2000gal. This is made of fiberglass and window made of glass. Can be customized with filter chambers, any dimensions, multiple glass windows or no windows. I'm thinking of getting one for coral QT then growout. Anyone interested, give me your customized info and I ask my brother to get a quote. Sent from my SM-N950U1 using Tapatalk
  4. danlu_gt

    UV LED flashlights

    Wow, I just did a quick check on Aliexpress... you can order these flashlight for much cheaper shipped directly to you. The manufacture I found wanted thousands of MOQ and with such low quantity, it makes more sense for you guys to just buy from Aliexpress. https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190123224205&SearchText=395nm+led+flashlight
  5. danlu_gt

    ReeFi gen 2 high power LEDs

    The ReeFi LED Gen2 will be equivalent to Radion G4 Pro at about 20%-25% lower price point. This is an estimate now. Difference in ReeFi LED Gen2 vs Gen2 Extreme is number of LEDs (48 vs 72) and number of controllable channels (6 vs 9). The light output angle will be the same between the 2 models.
  6. I love coconut juice. So far haven't chop off any fingers. Sent from my SM-N950U1 using Tapatalk
  7. danlu_gt

    ReeFi gen 2 high power LEDs

    I got a call last night from glass panel factory owner. The samples he showed me before was beautifully made but the night before delivery of mass production, he said the 3rd party that does electroplating process messed up and these do not pass quality check. He will need to order new glasses, tempered them, then use a different electroplating company to make the mirror finish. This means more delays. At least he's honest with me. I rather have delays and told me I will not accept poor quality panels. Sent from my SM-N950U1 using Tapatalk
  8. danlu_gt

    ReeFi gen 2 high power LEDs

    If there are lots of demand, I can mass produce wider reflectors to justify the tooling cost. If only a few, I can probably 3D print it. Keep in mind, these units will have more light output than most high-end LEDs out now. Sent from my SM-N950U1 using Tapatalk
  9. danlu_gt

    ReeFi gen 2 high power LEDs

    Most of the LEDs I'm using are Cree XP-E2. These are 20+% brighter than Cree XP-E that I used in ReeFi LED Pendant (first gen) at same power level. I can't wait till I get these over my own tank!
  10. danlu_gt

    ReeFi gen 2 high power LEDs

    I am making 2 models for now. Top of the line (deluxe) will have 72 LED diodes over 9 different spectrum that you can control individually. The standard model will have 48 diodes over 9 different spectrum but 6 channels (similar spectrum will be grouped). As a comparison, top of the line Eco Marine only has 46 LED diodes. Even with the trade war tariff of 25%, I think I can still price way below the competition with much better specs. As for tank coverage, I purposely reduce the spread to 80degs because I like to hang my lights up high and I don't like light bleed into my living room when I watch TV. Tank coverage will depends on what you like to keep. For SPS, with 2 separate main light source per unit, it should help with self-shadowing. Die-hard SPS growers will still want to pack in as many light they can depending on how dense they like to grow the SPS. For LPS and Softies tank, one unit will be more than enough. If your tank is big, just hang the lights higher. I still need to spend some time thinking of marketing names for the different models.. I don't know if I like deluxe and standard.... Maybe ReeFi Gen2 and ReeFi Gen2 Extreme.
  11. danlu_gt

    ReeFi gen 2 high power LEDs

    Ran into some issues when test fitting the enclosure... When I designed the enclosure, I downloaded the 3D STEP model files for the power jack and USB plug from the manufacture. I just assume that their drawings would be up to date. Unfortunately, the power jacks and USB plugs are 0.4mm higher in real life product than their 3D model files. Urrgg!!! Now, the enclosure mold tooling needs to be modified and this will take 10 days, which will push the production of these enclosure to after Chinese New Year. Another issues I ran into is the OLED screen pins arrangement were not what I specified. I was planning to connect the OLED screen with jumper cables to the main circuit board. I've already ordered the jumper cables, but now I need to modify the cable wires so the pins will match up (gnd to gnd, vcc to vcc, etc..). Once I finished assembling what I can now, I'll be heading to Taiwan to celebrate Chinese New year with my wife and son. I'll have to make another trip to get everything done. This will give me time to refine the software user interface.
  12. danlu_gt

    ReeFi gen 2 high power LEDs

    Yes, I would be excited to show off the new light at an upcoming meeting. My other fishes are feeding the triggers.. 😜 I have autofeeders setup with pellets. Hopefully, it won't run out.
  13. danlu_gt

    UV LED flashlights

    UV light will excite coral fluorescent pigments. Sent from my SM-N950U1 using Tapatalk
  14. danlu_gt

    UV LED flashlights

    I forgot to mention the UV is 395nm. Sent from my SM-N950U1 using Tapatalk
  15. danlu_gt

    UV LED flashlights

    I got quote for $12 if order 10pcs or more. If there is a lot more demand, then I can ask for better price. Sent from my SM-N950U1 using Tapatalk
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