Discussion in 'Equipment' started by houser, Mar 14, 2011.

  1. Vincerama2

    Vincerama2 Evil Overlord

    Mike, when you said you "grabbed one after the show" I thought you meant you bought one! Also "Worthwhile" gees, don't you phd types learn gooder engrish?

    I thought LEDs would be more long lived as well, but considering MH is ONE YEAR before colour's good for the lazy man!

  2. rygh

    rygh Supporting Member

    Pulse Width Modulation. Yes, for dimming.

    Basically, you turn the LED on/off really fast, like 500 Hz+, with a different amount of time
    for the LED being on versus being off.
    Your eye cannot see that changes fast, so averages them together to a general "brightness".
    You get a really nice smooth transition from dark/dawn/noon/dusk/etc.
    Many reef controllers can output those signals.
  3. Vincerama2

    Vincerama2 Evil Overlord

    Ah gotcha. Why didn't you say so! Silly 3 letter acronyms! I was looking at that to control the heat of an electric motorcycle vest. I haven't ridden since the kids were born!

  4. CookieJar

    CookieJar Guest

    I was seriously eyeing the Kessils too. Also saw them at Neptunes over 1 of their tanks. and they look great. There are a lot of things to like, most of which were mentioned already; small size, very low power consumption, easy to hang/ mount/ move, quiet and nice color- both 15K & 20K I liked. I do wonder how powerful they are relative to other LED fixtures and how their PAR compares to other LED fixtures. I'm thinking about going with Kessills for my tank but I'm afraid I might need more than 3 to get sufficient PAR, so I'm still on the fence.
  5. Vincerama2

    Vincerama2 Evil Overlord

    Yeah, I don't know how many I'd need for a 6 foot tank! Three at least! The good thing would be that adding one would only cost money, as you can just shift them around pretty simply I think.

  6. Coral reefer

    Coral reefer President

    Any body know if there are plans for a more powerful unit in the works from kessil?
  7. Gomer

    Gomer Honorary Member

    They have a bigger one, but a different chip. I wouldn't doubt that they will do the reef chip version however, I think in general, the efforts are better used with optics and owners with more lamps rather than fewer more powerful ones.
  8. tuberider

    tuberider Guest

    Shhhhh, quiet man........ Amazing things take time ;)
  9. GreshamH

    GreshamH Guest

    Do realize you are posting in the Kessil sponsor forum, not the open forum? Respect, learn it and live it!

    And I would much rather have a single source then 50 LEDS making my tank look like some RAVE or cartoon with all the colored shadows any day.
  10. GreshamH

    GreshamH Guest

    Stroll down to April. and you do not have to have a FB account to view company pages like Kessils :D
  11. Gomer

    Gomer Honorary Member

    Gresh, I think you might have read his post too harsly. I don't see much negativity. In fact, most was praise. I do see 2 valid critical points which imo, are nothing more then a reasonable want which Kessil may or may not want to key in on.
  12. sfsuphysics

    sfsuphysics Supporting Member

    Did a mod move the thread? Looks like aquarium/equipment forum to me.

    Hey I beyond the 2 semesters of required english I didn't go any further, I could tell you exactly how an LED works though :D
  13. rygh

    rygh Supporting Member

    I dislike the funky color banding effects as well.
    But if you simply cluster the dissimilar colored LEDs together, that issue goes away, and you can have as many clusters as you want.
  14. Vincerama2

    Vincerama2 Evil Overlord

    Hmmm... a rave tank! Awesome! You'd really need xenia in a rave tank though! Throw in a few pacifiers or whatever.


    I've been reading the other thread by Mark about LED colours. Ugh, I just want someone to tell me what the "answer" is ;)

  15. kessilman

    kessilman Sponsor

    Glad to see everyone at the show. Just wanted to comment on one thing for now and will catch up on more later.

    The connection between the unit and the power supply is very common. I believe it is an E5, but I could be wrong. Please make sure if you use an alternative to the included power supply that it meets the requirements of the instruction manual.

    It's the connection between the array and driver that is different. Both of which are housed inside the unit itself.
  16. rygh

    rygh Supporting Member

    Me too!
    There are some similar threads on RC that I have been following.
    You might want to check out this one:
    Tons of opinions. All a bit different.

    My so-called answer was to make all the different colors programmable, so I can fiddle with it endlessly.

    Product thought:
    Have a version with a micro-controller, real time clock, USB port, and PWM control.
    The customer could hook up the computer, and control the exact color they want,
    plus off/dawn/on/dusk timing, and maybe even lunar.
    Should only add about $15 or so to cost. Unfortunately a support mess.
  17. Coral reefer

    Coral reefer President

    Finally saw one today at aquatic central. Definitely impressed with how small it was! Hard to say exactly what the brightness was just at first glance and with all the other lights on everywhere, but I am more curious to see what 2-3 might be like over a 4x2x2...
  18. GreshamH

    GreshamH Guest

    Nope. I totally miss read the forum title. My point only had to do with the location, not the message, and I was absolutely out of line.
  19. GreshamH

    GreshamH Guest

    If you make it down to Neptune I think their tank is closer to those dims.

    I've got a spare 4x2x2 if some one has a few spare Kessils :D
  20. Vincerama2

    Vincerama2 Evil Overlord

    I gotta say though, the Kessils look really professional. The form factor is really sleek. My lights will go under a canopy so I don't need that level of coolness, but I'm still considering them. I'm balancing cost/durability. The recurring cost of bulbs and higher electrical usage can't be ignored! However, having MH and LED are not mutually exclusive!

    I'm glad we're past the early days of LEDs somewhat where it was like "Wow, check it out! An LED reef light, it's only $3000!"

    I've given up on early adoption of tech. My $500 mp3 player (Creative Jukebox, 6.4Gb, 45 minute battery life) and my $900 3.1Mp point and shoot digital camera have taught me to wait. I might point out my $1000 1995 Motorola cell phone too, but I won't. Oops! ;) Good thing I'm not bitter!


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