IF you are new to LED and want help choosing what to buy, POST HERE!

Hello fellow rollers,
Please help me identify this led fixture:

Some guy on a website that sells locally is trying to sell it. However, he claims that he took off all the stickers and he has no idea what brand or model it is. He just knows that it is 120 watts and he purchased it for $200....?

JimmyIndica said:

Opticgrowlights Promo HIGHYIELD for 10% off your order

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AquariusPanta said:

Already giving up on the DIY Bar project?

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In light of my own pondering on the ideas of buy or building, I made a few simple calculations concerning the Opticgrowlights, which look very appealing when the lazy part of me starts saying "Go for the buy, it'll be a lot less work!". Best case scenario I have 1300-1600W setup. Now I am concentrating on the $ per W number. So there it is.


12 x Vero-120W (1440W) - 12 x $329.99 = $3959.88 = $2.75/W

8 x Vero-200W (1600W) - 8 x $479.99 = $3839.92 = $2.40/W

4 x Vero-360W (1440W) - 4 x $799.99 = $3199.96 = $2.22/W

3 x Vero-500W (1500W) - 3 x $999.99 = $2999.97 = $1.99/W

The real question is: Does anybody know what's in the fixtures (heatsinks, drivers, fans etc.)? And if I decide to build my own setup what would be the $ per W number? There are a lot of upsides to buying, e.g. warranty, free trial, the professional "craftsmanship", but then again for me now it's all about the numbers and that on in particular. If I buy the parts that are apparently working pretty good for Opticgrowlights and I decide to build my own setup, how much will it cost for one of the above?

each 120 could be built for 150-200 apiece depending on the performance out of it! The 200 would be around the same price! Just my opinion! With the optics and heavenbrights needing photo evidence on a part failure makes it worth buying good production units. Hope I could help out! Building the smaller units is the way to go because it allows you to put all the light where u need it instead of all the hotspots and shade!

OscarTheeGrouch said:

Hello fellow rollers,
Please help me identify this led fixture:
View attachment 3446818

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OscarTheeGrouch said:

Some guy on a website that sells locally is trying to sell it. However, he claims that he took off all the stickers and he has no idea what brand or model it is. He just knows that it is 120 watts and he purchased it for $200....?

Click to expand...

It's an old piece of no-name junk from Ebay. Don't buy it, no matter how low the price, your money is better spent elsewhere.

Hopefully I have come to the right thread with a few questions i have for building an LED system.
I've been doing a lot of reading on this forum and tons of pages of information and its honestly become quite overwhelming and has me more confused but with more knowledge

My area will be 7ftx5ft with a high ceiling.
I'm thinking of going with the Vero29's for my first build but how many would I need for optimum coverage?
What wattage is the best for efficiency and what driver and how many should i purchase?

Going for a solderless build and have the pico EZ mate harness, wago 222 connectors, arctic alpine 11 plus heatsinks and fans, arctic silver 5, kaplon tape (or I will possibly go the permanent way with arctic alumina adhesive) ready for order.

I will need to power the fans too so any advice on which power supply?

Thanks for any help in getting me started with this project.

Hi Guys, I'm looking for a new LED for 2x4 flowering Tent. What would be the best LED for this tent ?

Hello,
Thank you Jimmy Indica and Bad Karma. I've been considering a DIY cree panel. I am interested in the CXA 1520 chips. Im picturing 10 X CXA 1520 for a total of 200-250 watts true usage. I would like for all the chips to be on one panel. I really don't appreciate having a single heat sink for each chip which is what I have been seeing on this forum. What do you guys think. I highly appreciate your opinions and thoughts.

BTW, I passed on that "piece of junk" I found the brand online. Its called "Tri-Band" and it appears to truly be a piece of junk.

OscarTheeGrouch said:

Hello,
Thank you Jimmy Indica and Bad Karma. I've been considering a DIY cree panel. I am interested in the CXA 1520 chips. Im picturing 10 X CXA 1520 for a total of 200-250 watts true usage. I would like for all the chips to be on one panel. I really don't appreciate having a single heat sink for each chip which is what I have been seeing on this forum. What do you guys think. I highly appreciate your opinions and thoughts.

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Glad I can help man! Good luck with the panel!

Im looking to add a bit of light to my mother plants/veg area and something like JimmyIndica's one on the prior page looks pretty close to what i was thinking for the bottom at least. Would 2 CXA3590s work or should I look for other options. Any advice would be helpful, very much trying to get into the diy cobs

LordRalh3 said:

Im looking to add a bit of light to my mother plants/veg area and something like JimmyIndica's one on the prior page looks pretty close to what i was thinking for the bottom at least. Would 2 CXA3590s work or should I look for other options. Any advice would be helpful, very much trying to get into the diy cobs

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Size of space? Budget?

Actually, while looking at the area Ive decided to go with an individual cob unit for each motherplant . So the question then changes too; is a Cree CXA3590 too much for one plant and I should maybe tone it down to to a 3070? Or is there better high quality/value than those two crees?

As to the budget? I would like to use Cree cobs and a solid but not over the top driver (maybe a pair of cobs for each driver?)

You can save some money and go with Vero 18's significantly cheaper then Cree's. Vero 18's are a little over $12 a COB. 1 Vero 29 would work as well and would be significantly cheaper then a 3590. If you look around you could maybe even get a single vero29 and driver to power it for the same price as a single COB 3590 from digikey.

How large is your space?

Don't know where you're planning on ordering from but Digikey's cree pricing isn't very friendly.

Spacewise im guessing each plant will occupy about 16-20inches on a side should supply me with plenty for cuttings. Vero29's have pretty good quality then?

Was going to order 2 cxb from Jerry. Making a veg light.
Would cxb 3070 5000K BD be the best option? Or is there a more efficient option

Any idea whenCXB3590 5000K DD are coming out.
I could not find this bin in data sheet.

Also is a spring washer recommended while mounting COB with bolts
Thanks

robincnn said:

Was going to order 2 cxb from Jerry. Making a veg light.
Would cxb 3070 5000K BD be the best option? Or is there a more efficient option

Any idea whenCXB3590 5000K DD are coming out.
I could not find this bin in data sheet.

Also is a spring washer needed to mount cob?
Thanks

Click to expand...

May as well use a 36v 3590 cd bin? Jerry had those too last I checked...not sure the efficiency difference. Cree pct tool or supes charts

Bolts or screws? If you tap and screw, no washer is necessary. The same probably goes for bolts.

robincnn said:

Also is a spring washer recommended while mounting COB with bolts
Thanks

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...vero recomendations... maybe i look on the crees recomendation too... but for not a lot of people i only post the veros recomendations...

...from AN31 – Handling and Assembly of Vero LED modules PDF...pag 17, 18 and 19...

Mechanical Assembly and Fasteners

Bridgelux Vero LED modules are provided with slots or holes to facilitate mounting the Vero LED modules using screws.

Figure 16 below shows the four Vero form factors and identifies the slot and hole locations for mounting to the heat sink or lighting fixture.

All form factors have 2 mounting positions with the exception of the Vero 29 module which has 4 mounting positions.

The slots and holes are sized to fit a wide variety of standard machine screws and thread forming screws.

Refer to the mechanical drawings included in the Bridgelux Vero LED module Product Data Sheets and 3D CAD files for additional information regarding the slot and screw hole size and position with tolerances.
Screw Location and Quantity

Figure 16: Vero LED Modules with Mounting Slots/Holes Identified with Blue Cross
Screw Head Type

Bridgelux recommends using tornillos con un hombro plana para el montaje Vero LED modules, see figure 17 below.
A wide variety of commercially available screws types can be used to meet design requirements.
Examples include pan head, button head, round head, and truss head screws.
Flat head and oval head screws or other screws with an angled surface should not be used.

Figure 17: Screw Head Types for Vero LED Modules

When selecting a screw, consider screws that have a low profile screw head.
A low profile screw head has the advantage of blocking less of the light emitted from the Vero LED module.

Additionally, if a secondary optic is to be used in the application, a low profile screw head allows more room for the optical components.

Screw Torque

It is critical to ensure the proper torque is applied to the fasteners when mounting the Vero LED module to a heat sink.

If too little torque is applied, the thermal path between the Vero LED module and the heat sink will be compromised while excessive torque may result in damage to the Vero LED module housing. Many variables affect the actual torque required to seat the screw such as thread friction, materials of the heat sink and screw, screw head friction, etc.

For example, a machine screw with typical thread friction can be seated with < 1 lbf-in of torque, but it may take much higher torque to seat a thread forming screw.

Table 5 below lists the suggested torque values based on the screw size shown and typical friction factors.

It is the responsibility of the customer to test and ensure the correct torque values are specified and used during the assembly process.

Note that the holder of the Vero LED module is constructed from a plastic material and is engineered to flex so that the bottom of the plastic will contact the heat sink surface, see figure 18.

Figure 18: Typical Flex of Vero LED Module

Flat Washers, Lock Washers, Self-Locking Fasteners, and Thread Sealants

Flat washers may be used to protect the Vero LED module from damage resulting from excess torque and to provide a wider distribution of the force applied by the screw.

Flat washers, however, do not prevent fasteners from loosening in vibration environments.

To prevent loosening of screws during vibration or thermal cycling Bridgelux recommends using lock washers, self-locking fasteners, or thread locking sealants.

Table 5: Vero LED Module Mounting Specifications



...i know i know... Wilson... time to shout my mouth and back to the cavern for some days... ...i saw your yellow warning card...

...for bros....stay safe and take care bros...

Saludos

I found the following site actually in an ad on the forum: http://www.ibuylight.com They sell LED grow light. Has anyone had experience with them, especially interested in the spider series.