latteslave Posted April 3, 2009 Share Posted April 3, 2009 These look great! Trying to get a good understanding... Is this a replacement for lighting to where the white is day and blue is night? Or just specifically for moonlighting? Link to comment
EOG Posted April 3, 2009 Share Posted April 3, 2009 scratch the 35 degree optics.. located them in different ones and see that 60 degree is an option. Link to comment
evilc66 Posted April 3, 2009 Author Share Posted April 3, 2009 I'd like one for my Picotope! I'm new to the whole lighting thing - what's the difference between the 12K and the 20K? Anyway, if we want one shoudl we just fire you a PM? 12K is more of a clean crisp white. 20K is more blue. There will be a group buy starting in about 2 weeks where you will be able to order one. These look great! Trying to get a good understanding... Is this a replacement for lighting to where the white is day and blue is night? Or just specifically for moonlighting? The white an blue LEDs are there to simulate different color temperatures. This is a little more than a moonlight If you are using the factory optics I would double check that 60 degree... factory distributor claims 35 degree optics. I ordered these and verified that they are 60 degree optics. Where do you think I got these from? It's not Eco-Lamps. Link to comment
Tanque Verde Posted April 3, 2009 Share Posted April 3, 2009 This is an exciting update, evil. Now will you please take that other project out of the oven: Ding, Ding, Ding <------That's your oven timer sounding. Link to comment
vivereilmoment Posted April 3, 2009 Share Posted April 3, 2009 damnit I new i should have waited before i ordered a light.... oh well... maybe i need more lights Link to comment
fastandsneaky Posted April 3, 2009 Share Posted April 3, 2009 Will you be taking custom orders for the group buys like 12g NC? Link to comment
EOG Posted April 3, 2009 Share Posted April 3, 2009 I know it's not eco lamps.. but I've got a very good idea.. I looked into this a few weeks back myself. cheers Joe Link to comment
weeber Posted April 3, 2009 Share Posted April 3, 2009 Hay evil do these screw in just about any light socket, do they need ballast, and what is the price for one lamp like that one from u? Link to comment
Giga Posted April 3, 2009 Share Posted April 3, 2009 Can you take some pics with a ruler next to them and can you give the dimensions? Link to comment
evilc66 Posted April 3, 2009 Author Share Posted April 3, 2009 got it Similar Hay evil do these screw in just about any light socket, do they need ballast, and what is the price for one lamp like that one from u? Please see post #49. Answers all your questions Can you take some pics with a ruler next to them and can you give the dimensions? I'll take some shots a little later when I do the PAR measurements. Link to comment
weeber Posted April 3, 2009 Share Posted April 3, 2009 Thanks evil i didnt see that last time i was in a rush. Link to comment
davidr2340 Posted April 3, 2009 Share Posted April 3, 2009 DAMN YOU BRO!!! Now I really want to set-up a Pico!!! Link to comment
evilc66 Posted April 4, 2009 Author Share Posted April 4, 2009 Ok, PAR measurements. Keep in mind, this is only 6W of LEDs so the numbers aren't going to be mind blowing. They will be better than most any option we have for small pico lighting. Measurements are taken from bottom face of the lamp to the sandbed. 18": 60 PAR 14": 80 PAR (gives better color blending) 12": 120 PAR (blue becomes more noticable) 9": 200 PAR (effective illumination area goes down to 6" diameter) Here are some pictures showing the effect, and the amount of blue that starts coming in as you lower the lamp close to the sand bed (left side on the pics). 14" 12" 9" The tank is 8"x8"x6" so you have a size reference. Link to comment
travisurfer Posted April 4, 2009 Share Posted April 4, 2009 evilc66: I was thinking about these LED setups and the spectral output of a cool white cree is between 4800-5500k, correct? Well, with the majority of the light coming from these led's, wouldn't the increased amount of light from the lower spectra also increase algal growth? For example: The 5000k produces significantly more light of longer wavelengths(reds and yellows) that would tend to increase algal growth in comparison to the 10000k, which is closer to standard reef aquarium lighting. Any thoughts on this? I haven't used LEDs so I don't have any experience with this, but I would be curious to see your take on this subject. Link to comment
evilc66 Posted April 4, 2009 Author Share Posted April 4, 2009 10K bulbs actually produce a very large amount of red light. The balance of red to blue in the 5000K LEDs hasn't shown any issue with algae growth at all so far. It's mainly due to the fact that the peak is still relatively narrow, and not as intense as a typical 10K PC bulb. LEDs end up working a little differently because of the very selective spectral output that can be designed into the LED as opposed to the very broad, full spectrum output of any other white lighting source. Link to comment
streetlamp Posted April 4, 2009 Share Posted April 4, 2009 Currently I have 24w of PC lighting over a 3g JBJ pico. I have been considering a 70w Viper or the 36w dual satellites. How would one of these compare to either of those choices? The tank is mainly softies but will have SPS. Link to comment
evilc66 Posted April 4, 2009 Author Share Posted April 4, 2009 Might be a little weak for sps unless you get the lamp closer to the tank. You would also need two of them for proper coverage. Link to comment
evilc66 Posted April 4, 2009 Author Share Posted April 4, 2009 2.5" diameter, 3" long. Link to comment
travisurfer Posted April 4, 2009 Share Posted April 4, 2009 10K bulbs actually produce a very large amount of red light. The balance of red to blue in the 5000K LEDs hasn't shown any issue with algae growth at all so far. It's mainly due to the fact that the peak is still relatively narrow, and not as intense as a typical 10K PC bulb. LEDs end up working a little differently because of the very selective spectral output that can be designed into the LED as opposed to the very broad, full spectrum output of any other white lighting source. Interesting. Have you tried running for example cree cool whites by themselves on a tank? If the red spectra are limited from the bulb, then there should be little algal growth based on that same hypothesis. I may end up testing this out over the summer although I don't have any spectrophotometers or whatever they use in this type of application. Link to comment
eddiecorrea Posted April 5, 2009 Share Posted April 5, 2009 Very nice evil. I will end up getting one I'm sure. Just gotta start the new tank but I gotta wait a few months. Link to comment
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