Par 38 LED spotlights

[rtparty]

Evil,

What color temp are you going to call this one? Is it gonna replace the current 20k bulb?

I am putting together an order and still trying to figure out what I want. This new bulb might be what I am looking for. Will it help bring out other colors that the original 20k lacked?

 

[JTL]

I am also waiting for the shipment to come in to place an order. I was originally thinking about 3-12k and 2-20, but now I am wondering if they will blend together or be spots of blue and spots of white. Evil, what are the LED's that come in the bulbs before you change them out. I think it said 6500 on the lamp base. I like a crisp white with tint of blue for all round use, but it would be nice I guess to be able to use the 20K for moon lights.

 

[Mustang Boy]

you wont be able to use the 20Ks as moonlights they are too bright it would be like leaving your display lights on 24/7

 

[zygote2k]

I'd just like to say that these are the best lights that I've ever used to light a reef tank. Endless possibilities with the different optics and spotlight capabilities. No more 'box full of light' look!

 

[JTL]

Thank you for all of the information. Cannot wait to see them in action.

 

[kmu]

I'd just like to say that these are the best lights that I've ever used to light a reef tank. Endless possibilities with the different optics and spotlight capabilities. No more 'box full of light' look!

cool,

can you please post full tank/lights picture? just wantedto see how you are mounting the par 38's

 

[JTL]

Wow. Thanks bud Good to hear people enjoying them.

Evil, It really helps when you have first hand experience and post PAR's, not to mention all of the questions that you answer. Thanks.

On the subject of questions, do these look like they would work for a fixture?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200433498353

 

[ohclereef01]

I really wish there was a video of accurate light production in the tank. Some of the pics are just not doing the product justice it seems. Maybe someone at ReefStock will have an HD cam to really put on a show for us.

.. ok my question.. I have an odd size tank 33L 48x13x12. Whats the recommendation? 4x 60 degree? Currently I have an IC660 T5 4 bulb setup waiting to be put on the tank.. was looking at LED for 'shimmer' now I'm looking at a full fledged LED solution and scrapping the current PC(in use) T5(build stage)

 

[JTL]

IIRC Evil had some pics and PAR values in one of the threads.

 

[Psionicdragon]

Evil, It really helps when you have first hand experience and post PAR's, not to mention all of the questions that you answer. Thanks.

On the subject of questions, do these look like they would work for a fixture?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200433498353

Wouldn't that cover up the heat sink? I was told that it is best to find something more open to allow air to pass through the heat sinks.

 

[Konolua]

So I think I missed it, sorry, but are these PAR38's your MAIN tank lights? You say these replace 400w MH? What kind of ballasts run them? Are they hotter/cooler than halides? Cost less?

I can not believe how cool your tank looks with these!!!

 

[evilc66]

Looks like some of my discussions on this thread stepped over into "commercial" territory, so I've been getting in trouble and all my posts have been pulled from the thread. So, doesn't look like I'll be talking about these much. I'm not taking a stab at the RC Mod staff, just playing by the rules from this point.

 

[zygote2k]

I'll be building a light system on a 215 using 9) PAR38's with 40 degree optics. There will be 3 clusters of 3) bulbs spotlighting 3 seperate columns.

Yes- I replaced my 400 mh with 3 of these on my 60 cube.

 

[plancton]

I got a PM from Evil and he says that the PAR38 bulb with 40degree lenses give about the same PAR as a 250MH in a 12" ratio. That sounds so good. He also told me they have useful life of 50 000 hours.

Does that mean 50 000 until they burn out and don´t light again, or 50 000 hours of useful light for corals?. If so, then turning them on for only 8 hours a day would yield in 16 years of use till replacement?, that sounds like the best investment I could have done.

I´m so excited I just ordered two with 60 degree lenses for my 40gal, I will also be using 2x 24watt t5 with independent parabolic reflectors, so I would probably get more light than before when I had 5x24 watt t5.

I´ll post my results when I get them.

 

[reefdude135]

I checked with evil at the Captive Reefs lighting sub-forum and he states that LEDs do have a drop off over time... did not clarify whether it was functioning light or until usable drop off occurs.

 

[plancton]

Can somebody clarify that? he told me 50 000 hours of useful life, don't know if that's functioning light or unit usable drop off.

 

[evilc66]

[violation]

 

[Crackerballer]

So does anyone have a large set of these over a large tank? I'm talking 12-15 Lamps over a 4 or 5 foot tank.

I am wanting to do a 60x30x24 rimless, but want to make these look sexy using some super sleek mounting and track lighting. I need to see how people have done it.

 

[plancton]

Evil, how many PAR38 and with what type of lenses would you use to substitute the same intensity and lighting area of 1x lumenmax elite reflector with 250watt hqi? and at what height would you set them up?, I got my lumenmax elite splashield at 18" from the water

 

[beeker]

give me 3-4 weeks and i should have 8 bulbs over half of my 200g DD tank dimensions are 48*36*27 i'm going with all 12ks to start and 40 degree optics, i will have pics the second i get them up and running i'm just hoping i don't have to wait a long time for the bulbs as i know they are on back order often and demand for them right now is pretty high

this tank will be lit by 16 PAR38's in total, 8 over each side of the tank

and i mainly keep sps so this should be a good test of their abilities