chinese led lights

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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...:celeb1:

http://www.aliexpress.com/store/317880/211484570-558379481/Dimmable-120w-55x3w-led-aquarium-light-with-Lens.html

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
 
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
 
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.
 
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.
 
Led optics 101

Led optics 101

Optics/lenses are used to focus led light to increase penetration :hmm2:

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

For deeper penetration :hmm2:
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 )
 
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

Yes

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
 
Optics/lenses are used to focus led light to increase penetration :hmm2:

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

For deeper penetration :hmm2:
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 )

My tank is 30"L x 12"w x 18" deep. I was thinking that the tank only being 12" wide the optics would help with the overspill of light and with them being dimmable i could keep them dialed down not to burn the corals.

Or am i wrong and should i go with the 120*?
 
Overcasting

Overcasting

Sorry to say but the big drawback with black boxes is customization.
90 degree optics in that tank will cause spotlight effect on sand bed
Over spill is remedied by putting outer LEDs at an angle to cast away from the glass...

You should be fine with the 120 degree lens...
 
Ianwraab how legit do you feel the warranty is on the unit from aliexpress the 120 watt one with 55x3 watt leds the one that 175? Is there solid proof they will really warranty it for the 3 full years they claim?
 
A good as any other

A good as any other

Ianwraab how legit do you feel the warranty is on the unit from aliexpress the 120 watt one with 55x3 watt leds the one that 175? Is there solid proof they will really warranty it for the 3 full years they claim?

I'd say yes... I was very impressed with the service I received... Compared to the other china companies I poke with alibaba.com is absolutely phenomenal..

Anyone can lie...
Bestbuy screwed me on my extended warranty on my laptop... You think they would be the most reliable....


I bought 2last night and I'm a bit tight with my money so I'd say...
Yes they will do as promised....

Sam Chen at alibaba.com is the man!
 
So did u get yours from aliexpress or alibaba and is the sam u speak of the same sam from evergrow?

Can u postpics when u get them and maybe pm me a way to get in touch with sam
 
And where in tampa are you cause I'm in holiday fl which isn't far from you id like to maybe come check out these units if ya wouldn't mind
 
So did u get yours from aliexpress or alibaba and is the sam u speak of the same sam from evergrow?

Can u postpics when u get them and maybe pm me a way to get in touch with sam

Yes, aliexpress.com ,sorry
Yes Sam is Sam , sales02@ledgrowlights.cn
I will defiantly be posting my pics ASAFP

I'm in pinellas county... I work at Rockin Reef in st.petersburg 33710

Yeah I don't mind... You'll be the first non-family member to see my tank.....Sad really :lmao:
 
Ok so after the first year you will supply the parts but id have to repair it on my own? Are there any papers backing this 3 year warranty that come with it?
 
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