chinese led lights

[Chromey316]

Originally Posted by Ianwraab

Check this out... I talked to Sam and got him to set up these custom jobs....
take a look

55x3w
30 blue 25 white
90 deg lens
Dimmable...

$175.00 Free shipping...

http://www.aliexpress.com/store/3178...with-Lens.html

My worry would be,
Cree/Epistar/Epiled

What LED is it.?
I just bought 3 fixtures with bridgelux LEDs running at 3W, pushed at 630Ma

[HBPat]

Hey Sam....or anyone

Would the 90 degree optics in this one

http://www.aliexpress.com/store/3178...with-Lens.html

work best for a 24" X 24" X20" cube?


Thanks

[Chromey316]

Nice unit Sam But damn Your almost 2X the price as other Cree Led systems that are dimmable.

[TropTrea]

Originally Posted by EverGrow_Sam

BridgeLux 3Watt single chips LEDs. 500mA-550mA, real output is about 120W.

Bridglux LED's 3 Watt

500 ma requires 3.2 Volts = 1.5 Watts
700 ma requires 3.5 Volts = 2.54 Watts
1,000 ma requires 4 Volts = 4 Watts (not recommended)

The big difference between Bridglux and Cree LED's is that brifglux run a little hotter and produce slightly less light at the same Wattage. It is a heat to light conversion ratio. Also since they run a little hotter the life span is shorter if you do not have adequate cooling for the additional heat they generate.

[Chromey316]

Originally Posted by TropTrea

Bridglux LED's 3 Watt

500 ma requires 3.2 Volts = 1.5 Watts
700 ma requires 3.5 Volts = 2.54 Watts
1,000 ma requires 4 Volts = 4 Watts (not recommended)

The big difference between Bridglux and Cree LED's is that brifglux run a little hotter and produce slightly less light at the same Wattage. It is a heat to light conversion ratio. Also since they run a little hotter the life span is shorter if you do not have adequate cooling for the additional heat they generate.

WOW thanks alot, Ive been looking for this info.
The units i bought are 630Ma 3 W bridgelux.
I still plan to change the fans with a higher CFM silant fan.

[TropTrea]

Originally Posted by EverGrow_Sam

Here attached one of our Newest NOVA series lights for all of you: http://www.aliexpress.com/store/3178...um-lights.html

I have seen fixtures exactly like these appearance wise sold onder the NOVA brand name. The ones I saw were extremly BLUE well over the 20,000K appearance. With the Blues turned off and only the so called Whites it did give a 20,000K look. Florescense realy poped with them but the reflected colors were not the greatest.

Now they make it sound like you can select what LED's you want in it. If that is true then I would suggest a 1 to 1 to 1 ratio of neutral whites 5,000K, Blues, and Royal Blues.

[breon]

http://www.ebay.com/itm/261015961188?redirect=mobile
What would your be on these eBay lights how would they compare to the higher end or priced lights

[biecacka]

Anyone using these on 30 inch deep tank?
Any luck?
Corey

[Travis1787]

Thanks for those pics big country! And yea I deff won't rule out 3 ill prob start with two and get another if I feel I need it cause also I don't plan on keep much if any sps cause I'm thinking about going to an agressive fish tank with softies so 2 might do fine ina mainly softy tank.. we shall see though I can always get another

That unit from ali express that ianwraab posted I don't see where it says the warranty on those do you kno what warranty is?

[Chromey316]

I think everone of them come with atleast 1 year, If not... DONT ORDER from them.

[kbell2433]

Originally Posted by Travis1787

That unit from ali express that ianwraab posted I don't see where it says the warranty on those do you kno what warranty is?

This is from the link he posted.

7.120w(55*3w) DIMMABLE LED AQUARIUM LIGHT SERVICE TERMS:

LED LIGHTS has 3 year factory warranty. we are professional, and not part-time seller ,We have many years' experience in LED LIGHT produce, professional staffs and top-ranking service, thank our old customers and new customers very much, for your persistent support!
Please just feel free to contact us if any problem when installation or use, till now we found that most of the problem it is not the machine itself, just wrong operation or misunderstanding, So please checking it carefully before sending back, if it is not defective as you described, we will not be responsible for all the resending shipping cost

[Travis1787]

Yea I'm seeing if I can get a legit 2 year warrranty even if it meant paying a little eaxtra kinda like these aliexpress units shipped for 175 ... I've been leaning towards the aquarium led ones there 160one year warranty only because they seem to have the best customer service but if this sam guy said there's was a 2 year warranty id be verrryyy curious

[tfrizz80]

Originally Posted by biecacka

Anyone using these on 30 inch deep tank?
Any luck?
Corey

I read earlier that if your tank is over 24 inches deep you should diy a set. My tank is 180 gal 60*30*24. Im still seriously thinking about 3 or even 4 of these 120 watt fixtures. Just not sure which one and of im going to buy these for the price then im going to find the best price. Seems like alot of these are the exact same thing just selling from different people for different prices.

Sent from my DROIDX using Tapatalk 2

[Travis1787]

Yea that's on the more expensive on but if that's also the warranty for the ones that ianwraab posted well then holy cow sign me up haha

[rdavis47]

Best LED system for a 190 gal 6' tank? currently have two 250 watt MH with two 6' VHO bulbs. Should I go with at Rapid DIY or one of the Chinese units. I was thinking maybe two of the 48 count kits from Rapid or maybe two of the Chinese units.

[kbell2433]

Originally Posted by Ianwraab

Check this out... I talked to Sam and got him to set up these custom jobs....
take a look

55x3w
30 blue 25 white
90 deg lens
Dimmable...

$175.00 Free shipping...

http://www.aliexpress.com/store/3178...with-Lens.html

Originally Posted by Travis1787

Yea that's on the more expensive on but if that's also the warranty for the ones that ianwraab posted well then holy cow sign me up haha

This is the link ianwraab posted.

Scroll down to number 7. that is where the waranty info is.

and the price is 173.25 not 175.00

[Travis1787]

Woooow your right ... That's awesome!

@sam from evergrow is this 3 year warranty legit ? And does something of proof for it come with purchase? If so I might be sold haha

[Chromey316]

I was stuck Either these or a Rapid 108LED kit. They both worked out to around the same cost, But im getting lazy as i get older, So im trying 3 of the 3w bridgelux black units first. If they turn out to be ****, Ill DIY.

[TropTrea]

Originally Posted by Chromey316

WOW thanks alot, Ive been looking for this info.
The units i bought are 630Ma 3 W bridgelux.
I still plan to change the fans with a higher CFM silant fan.

630 MW means they are running at roughly 3.40 to 3.35 Volts.
Since Watts = Amps X Volts

0.63 Amps X 3.35 Volts = 2.11 Watts
0.63 Amps X 3.40 Volts = 2.14 Watts

Now if you looking at total power used by a fixture with an innefecient driver you could have roughly 1 Watt used by the driver for every 2 watts of lighting. So you could have a 60 LED fixture using 180 Watts of electricity at the wall but only 128 Watts are applied to the LED's themselves. Then you have a precentage of the LED power converted to heat and the rest converted to light.

This is why it is hard to judge fixtures other than with an unbiased testing source.

Different LED's have different heat to light ratios
Simular LED's oppereate differently at different power ranges.
Different drivers have different amounts of power that they consume
Different Fans use different amounts of power and create different levels of noise.
Different Optics cause different levels of reflection, refraction, and diffusion.

It is very possible to design and build two seperate LED systems that both use 120 Watts of power total. However with one using the most effecient design it could produce two or more times the actual light as the other unit.

[Chromey316]

Ok good to know, I took it a step further and source a few mean well(sp) drivers that would drive the fixtures just incase.

[Ianwraab]

Originally Posted by HBPat

Hey Sam....or anyone

Would the 90 degree optics in this one

http://www.aliexpress.com/store/3178...with-Lens.html

work best for a 24" X 24" X20" cube?


Thanks

You not need optics or less than 24"...

[bskiba]

Originally Posted by Ianwraab

You not need optics or less than 24"...

explain the optics? what and when?

[Ianwraab]

Optics/lenses are used to focus led light to increase penetration

Fixtures without optic lenses are operating at 120 degrees this is fine for tanks under 24" as the light spreads out

For deeper penetration
Optic lenses are used to focus the light beam... 90 degree being most common...


60 lenses are prone to cause beams so they need to be mixed in with other optics ( options you have with DIY kits )

[rad1687]

Pardon the dumb question, but can a controller be used to have the intensity automatically change throughout the day, to simulate sunrise and sunset? Thanks!

[Ianwraab]

Originally Posted by rad1687

Pardon the dumb question, but can a controller be used to have the intensity automatically change throughout the day, to simulate sunrise and sunset? Thanks!

Yes.... Eshine has some units that do just that
Check out the 48x3w with solar simulator they have