Tripwyr Posted April 1, 2013 Share Posted April 1, 2013 Hyper violet, turquoise (actually cyan), and cool blue also help with coloration, some with fluorescence, and some with color rendition. Good luck finding a 90 CRI neutral white in the 4000-5000K range to purchase from somewhere that can guarantee the bin. There's usually only warm white chips available with a CRI that high. That clarifies a lot, thanks. Link to comment
phasezero Posted April 2, 2013 Share Posted April 2, 2013 I know everyone is always fascinated with the latest and greatest LED technology and all the colors out there, but I'm really interested to see how well the colors blend. I'm having a hard time imagining how the colors can blend seamlessly without disco with the different high powered emitters far apart, far compared to 3-ups at least or multichips. Could you take some videos with some heavy surface agitation when you complete your setup? Link to comment
jedimasterben Posted April 2, 2013 Author Share Posted April 2, 2013 I know everyone is always fascinated with the latest and greatest LED technology and all the colors out there, but I'm really interested to see how well the colors blend. I'm having a hard time imagining how the colors can blend seamlessly without disco with the different high powered emitters far apart, far compared to 3-ups at least or multichips. Could you take some videos with some heavy surface agitation when you complete your setup? The beauty of this sort of array is that you hang them relatively high in comparison to premade fixtures and the light has a chance to blend better. That being said, any and all LED arrays that are not multichip will have some color banding. Link to comment
jedimasterben Posted April 3, 2013 Author Share Posted April 3, 2013 Ordered the last pieces of the puzzle just now from LEDGroupBuy! They won't ship until the 11th (or after) once the LDD are in. But, I'm still Link to comment
MeepNand Posted April 4, 2013 Share Posted April 4, 2013 You can get the ldd for just another $2 each from mouser. Link to comment
jedimasterben Posted April 4, 2013 Author Share Posted April 4, 2013 Meh. I have credit at LGB, so I'm good. EDIT: checked Mouser... they have a 4-15 week lead time. Link to comment
MeepNand Posted April 4, 2013 Share Posted April 4, 2013 Oh, looks like I got the last few before they ran out. Wait a sec, they list three things for availability: Lead time, on order, and stock. If you search "ldd driver" and click on the cheapest 1000h, there are still 50 in stock. Link to comment
Osama Posted April 4, 2013 Share Posted April 4, 2013 Good luck finding a 90 CRI neutral white in the 4000-5000K range http://ce.citizen.co.jp/lighting_led/en/products/4000K_Ra90.html ?? Link to comment
jedimasterben Posted April 4, 2013 Author Share Posted April 4, 2013 Oh, looks like I got the last few before they ran out. Wait a sec, they list three things for availability: Lead time, on order, and stock. If you search "ldd driver" and click on the cheapest 1000h, there are still 50 in stock. Those are a different model. http://ce.citizen.co.jp/lighting_led/en/products/4000K_Ra90.html'>http://ce.citizen.co.jp/lighting_led/en/products/4000K_Ra90.html ?? Finding information on that bin is easy, finding it for sale, not so much. Link to comment
blasterman Posted April 4, 2013 Share Posted April 4, 2013 I'm having a hard time imagining how the colors can blend seamlessly without disco with the different high powered emitters far apart Good question. I....utterly effing hate disco shimmer, and I've been called a few names for pointing it out in other threads. The 'Evil Cluster' is not 100% disco free. Because you're using offset LEDs of different colors there will always be some. However, compared to other commercial fixtures popular here, especialy those that have red in the mix, the 'Evil Cluster' has substantially less. There are two reasons for this. The first is because the big neutral is using a reflector -vs- an acrylic optic, and large reflectors do a better job blending light. Acrylics tend to collimate light like a lens, and this creates blending problems. Reflectors mix light. The second reason for low Disco shimmer is that royal blues in an 'Evil cluster' are on either side of the main white source. As ripples in the water act like a lens and project color differences that catch our eye (disco shimmer) the opposing royals help fill in the adjacent shadows. They essentially cancel each other out. This is why I push clustering over even spread layouts. When I build Evil Clusters I mix in one or two 470nm blue in the ring of royals, and it's totally seamless. If you stared closely at it a standard triple up has a bit less shimmer. A Kessil a lot less, because it basically has none. Compared to a Razor,Radion, Vega, PAR38, or ay other fixture using discrete 3watt reds the Evil cluster has far less disco shimmer. Finding information on that bin is easy, finding it for sale, not so much. +100. I've mentioned the Citizen chip a few times over the years. Problem is finding it, and more so optics for it. Nichia also has some high CRI options, but it' not even practical to use them. Rebel ES is available in decent CRI lots in the 4000k range. Link to comment
Osama Posted April 4, 2013 Share Posted April 4, 2013 Those are a different model. Finding information on that bin is easy, finding it for sale, not so much. May be malid or steve can get them for us Link to comment
laatto3 Posted April 5, 2013 Share Posted April 5, 2013 Following with great interest. Considering an evil type rig to replace existing 2x 400watt halide system over a 3 foot deep sps reef. Electricity prices in Australia are insane. @Jedimasterben I might have missed this in previous posts but which optics from your shopping list are going with the new luxeon royals. Also curious as to the choice of hyper violets vs true (or say the violets from Steves)? Link to comment
evilc66 Posted April 5, 2013 Share Posted April 5, 2013 Hyper/True violet is all marketing speak. There's 5-10nm difference between the different violet LEDs on the market, and they all perform. Link to comment
jedimasterben Posted April 5, 2013 Author Share Posted April 5, 2013 May be malid or steve can get them for us More than likely they wouldn't, as they are very Rebel and Cree. Following with great interest. Considering an evil type rig to replace existing 2x 400watt halide system over a 3 foot deep sps reef. Electricity prices in Australia are insane. @Jedimasterben I might have missed this in previous posts but which optics from your shopping list are going with the new luxeon royals. Also curious as to the choice of hyper violets vs true (or say the violets from Steves)? Everything seems to be expensive there, it's a shame! The Luxeon M are getting the Ledil Minnie reflectors. Look below about the violets. Hyper/True violet is all marketing speak. There's 5-10nm difference between the different violet LEDs on the market, and they all perform. I agree, almost all violet LEDs are the same make essentially, with the same output and the same spectral readout. Standard true violet: The hyper violet are different. Milad has these custom made. Hyper violet: Guess who has Luxeon M boards. Link to comment
jedimasterben Posted April 5, 2013 Author Share Posted April 5, 2013 All copper! Size comparison between the M and Rebel ES. Link to comment
phasezero Posted April 5, 2013 Share Posted April 5, 2013 Dang those are huge. Can you confirm steve's spec statement of 90 degree lenses on these? Link to comment
jedimasterben Posted April 5, 2013 Author Share Posted April 5, 2013 Dang those are huge. Can you confirm steve's spec statement of 90 degree lenses on these?The M has a FWHM of 140 degrees according to the datasheet. http://www.philipslumileds.com/uploads/354/DS103-pdf Steve is working on getting Ledil Minnie WWW reflectors, though. Link to comment
MeepNand Posted April 6, 2013 Share Posted April 6, 2013 Wow, no need for 3ups there. They are the same size and ~30% more powerful. Link to comment
jedimasterben Posted April 6, 2013 Author Share Posted April 6, 2013 Wow, no need for 3ups there. They are the same size and ~30% more powerful. Considering 3ups are on the same 20mm stars, yeah, they're bigger lol. And actually, just the royal blue M at 1000ma is about twice as powerful as a NW-RB-RB Rebel ES 3up. Being on that copper MCPCB, I wonder how much harder than 1000ma I can push them. They seriously weigh a ridiculous amount and will have zero issues dissipating heat. I've seen people run Cree XM-L at six amps (spec is maximum three). Link to comment
Tripwyr Posted April 6, 2013 Share Posted April 6, 2013 What is your plan for cooling this monster? Do you plan to add fans to the setup? I'm considering a (somewhat) similar design using a single 1350 to cover a 24"x24"x18" run at 1000mA (3000+lm). Not yet sure how I want to cool such a setup. Link to comment
jedimasterben Posted April 6, 2013 Author Share Posted April 6, 2013 Just a standard heatsink and and a fan. Link to comment
cichlidtx Posted April 6, 2013 Share Posted April 6, 2013 How are you going to wire up the M's? How many per driver? I may add these to my full spectrum setup. Link to comment
jedimasterben Posted April 6, 2013 Author Share Posted April 6, 2013 Depends on the driver you want to use. They have a forward voltage of 11.4v at 1000ma. Link to comment
cichlidtx Posted April 6, 2013 Share Posted April 6, 2013 Was considering LDD-1000H. What will you be using as I already have LDD-700H for other LEDs. Your build is going to be nice, will be following along. Thanks. Link to comment
jedimasterben Posted April 6, 2013 Author Share Posted April 6, 2013 As long as you use a 48v power supply, you can run four of them per LDD. Link to comment
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