Hey guys over the weekend the blue channel on one of my D120's went out. I purchased (2) D120's straight from Evergrow on 12-28-12. I went with the custom layout option and used Monkiboy's layout from way back when. I haven't had a single problem from these two units until now....
The driver isn't bad because I can run the white channel with it. All three fans work as well. So I took two AA batteries and made a power source with a neg / pos wire coming off of it. By touching the neg/ pos on each diode I can tell that I have 4 diodes burnt out. I am assuming at this point that the 4 burned out diodes is causing the entire string not to light up properly?
I purchased a similar 165w led fixture with only 2 fans from a local reefer months back as a spare/frag tank light and it has always had 5 diodes burnt out on it, bet yet it still functions properly... except for the 5 leds being burnt out and very very loud fans!...
I have replacement diodes, but only a 30w soldering iron. (it doesn't get hot enough). Could the very old Evergow D120's not have the circuitry of the these newer leds? Say if a couple diodes burn out then the entire channel shuts down? Just wondering before I go by a bunch of DIY soldering stuff and try to solder in replacement diodes on the Evergrow D120...
If not I may just get two REEf Radiance 165e's w/ the Apex ready option to replace...
Thanks!
mknightryder
Why not just replace the individual diodes. Reefbreeders seems to have them on their website.
Or is that not possible?



almost a year later I am getting great colors with these units.. however, I may supplement with some t5 to try and keep some color spread where the leds limit light.. in otherwords the leds are directional and some of the sps tend to die underneath as the sps grows.
thought s
The cob at first apears so to me.. But coral growth is what mattersBy your eye, which one is more pleasant?? The Cob or the full spectrum? In the end its what the corals like the best, just wondering nameissoftlover. Thanks
Has anyone purchased from Aqua2goled on ebay? I'm ready to buy an Evergrow D2120 from them and would like get some feedback on how they (aqua2goled) operate if possible. Also, does alibaba deal with individuals or only companies? I'd like the option of a customized layout if possible before commiting to buying a ready made evergrow. I'd switch the warm whites to a higher k diode for one and use 120d optics on the 420nm, red and green diodes.
I purchased mine from Aqua2goled. It said Ocean Revive on the AWB though. I am sure they are one and the same.
Also, does alibaba deal with individuals or only companies?
Most Chinese companies I see on Alibaba are distributors who are not very interested in single retail sales, although many will sell small quantities or sometimes singles and/or send samples for testing. I have contacted a few for group buys in the past with good responses from the sellers (about 50% off in quantity). So if you have 5 or 10 people or more you usually can work out a good deal, but you have to work out quantity shipping and also beware of US Customs. If you have a large order you are more likely to raise an eyebrow when your shipment goes through customs.
I order things from AliExpress. Shipping often is free. My LED light arrived from Hong Kong with free FedEX International Economy shipping in just 10 days. The seller was happy to answer questions both in live chat and via the AliExpress messaging system. While browsing AliExpress I have seen some companies that will customize lights if you ask ahead of time. If you don't ask, they ship the "default" configuration.
Here is what I am using on my 37/40H.
http://www.aliexpress.com/item/90cm...al-Lamp-Bridgelux-136-Series-1/664569064.html
Fit and finish are very good, and the spectrum looks good to my eye although I don't have a PAR meter. So far my long tentacle anemone and rock flower anemones like it, but only time will tell.
-Jax Reef-
I got a D2120 from them, I`m happy with it. The only concern I have is I don`t know if those leds are replaceble, as I`ve read some says that some of the d120 are surface mounted LEDS and it`s a PITA to replace them when they got busted. I don`t want to tamper the seal as the warranty might be voided.
Cheers!