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RockStonedJesus

Active Member
Hi @Spiderfarmerled, can you clarify some information for us regarding your G series and SE Series grow lights?

I've done a bit of research, though it appears not all of the information is being provided, and if it is, there's a lot of inconsistencies with said data. I won't go too in-depth about this, but I want to clarify a few keypoints, as I couldn't seem to find clear, reliable information online:

  • What model Bridgelux diodes are you using in your G-series lights? I assume their horticulture SMD chips? (2835 0.2W (21L-3DA))?
  • You mentioned, back in March 2023, that your G-series requires more diodes to meet the same wattage output as the Samsung diodes, though there seems to be a significant difference in diode count per watt between the G8600 and G1000W, as example.
  • Based on the above, the G8600, while having a higher Wattage output, has less diodes per watt when compared to the SE7000. I am not certain if I am calculating or working this out right, though something doesn't seem right, to me, as those numbers don't seem to add up.
Comparing the G8600 and SE7000, you can see the SE7000 has more Samsung diodes per watt compared to the G8600 light, which ends up having less diodes per watt, however, the G1000W has significantly more diodes per watt compared to the G8600 - to me, being a complete idiot with LED lights and their specifications, the G8600 seems to be very bad value.

Based on this information, it almost seems as if the Bridgelux chips are being powered slightly more - based on your comment (linked above), it would insinuate that the Bridgelux model lights require more chips to compare with Samsung.

However, the diodes per watt indicates otherwise. It, in-fact, indicates that perhaps the diodes are being ran a bit harder than the Samsung counterparts. Again, this is simply basing my theory on your own comment surrounding the fact that Spider Farmer manufacturers the G-series lights with more diodes to compensate.

Unless there's something I'm missing, I'd appreciate if you could chime in. It's VERY DIFFICULT to compare model lights, as you don't have all of the information side-by-side. Essentially, I am trying to understand what light is going to "last longer", based on how the LED chips are driven.

I'd also recommend putting the specifications of each light's driver (make/model, etc), so buyers can make more informed purchasing decisions.

I've seen your chart showing the difference between the SE Series and G Series lights, though this still doesn't really put things into comparison, as in my eyes, I'd be best off going for the G1000W over the G8600, and the SE7000 would be a better option over the G8600, as my assumption would be that the G8600 diodes are being driven harder.

I sincerely hope you can clarify these things for me, and perhaps the community, as data is critical, and providing accurate, meaningful data is very important. Once I have this information, then I can make better purchasing decisions. I don't want to be stuck with a light that fails prematurely due to diodes being powered harder, if that makes sense.

Thanks again team, and I sincerely hope you can clarify this up.

EDIT: You also don't mention which binned LM301B diodes you use, as they have 70, 80 and 90 CRI binned chips. Can you please clarify, as this is also a very important factor.
 
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Spiderfarmerled

Spiderfarmerled

Well-Known Member
Rollitup Advertiser
Hello,
Firstly, calculating the wattage of the LED is
Electric power in a resistor circuit can be expressed as
P = U I
= R I2
= U2/ R (4)
where
P = electrical power (watts, W)
I = electrical current (ampere, A)
U = electrical potential difference, voltage (volts, V)

Eg： V = 121.45 V I = 6.029 A P = 732.3 W （This is the data of SE7000 led, we write this in the product specification）

Then, good diodes determine the light effect, brightness, and light decay of LED and the lifespan. The reason why we offer different types is that can meet various budgets.
 
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RockStonedJesus

Active Member
Spiderfarmerled said:
Hello,
Firstly, calculating the wattage of the LED is
Electric power in a resistor circuit can be expressed as
P = U I
= R I2
= U2/ R (4)
where
P = electrical power (watts, W)
I = electrical current (ampere, A)
U = electrical potential difference, voltage (volts, V)

Eg： V = 121.45 V I = 6.029 A P = 732.3 W （This is the data of SE7000 led, we write this in the product specification）

Then, good diodes determine the light effect, brightness, and light decay of LED and the lifespan. The reason why we offer different types is that can meet various budgets.
Click to expand...
Hello, thank you so much for your prompt response, it is greatly appreciated.

However, that doesn't really answer my entire query, and is kind of a round-about answer.

I was hoping to get more clarification behind your comment:

I raise this concern as you clearly stipulate that the cheaper, Bridgelux diodes require more to get the same/similar wattage. However, based on the G8600 light, it has less diodes per watt compared to the Samsung diode models, which is contradictory to your comment. It is almost as if this information is... perhaps, being made up?

We all understand that the G-series lights are a budget friendly light, and we all understand that they are designed to meet similar performance at a better price, though we need more clarification from manufacturers so we can best understand whether or not we want to spend the bit extra and get the "premium" SE-series light.

I only say "premium", as I've got absolutely zero experience or knowledge behind Bridgelux, so to me, personally, Samsung is superior. This may be naive of me to say, but it's all I know at this stage without further clarification from Spider Farmer.

I am not trying to dig at Spider Farmer, as I appreciate the price to performance compared to even local LED lights sold at hydroponic stores. I also sincerely appreciate the fact that all your lights have over 3 diodes per watt (at least in the G and SE series), which is leading the Chinese-industry of lights. I personally have a few Viparspectra KS5000 lights, and was disappointed when I realized how little diodes per Watt they have (less than 3 diodes per watt of power).

Spider Farmer, overall, upon the research that I've done, seem to have great lights for my specific country - when compared to other Chinese, and local, and other imported brands. I work on price to performance. So good job there, Spider Farmer.

However, I would sincerely appreciate:
  1. If you could be more transparent about the specifications (number of each type of diode & exact bin of the diodes you're using & exact model number and specifications of diodes you're using for your lights),
  2. If you could be more consistent with your data across your websites - I've had a look at your .com, .au, .ca, etc - and the data is an absolute mess between each website. Keep your data clean, and uniform, as it represents your brand. If you keep the formatting clean, neat, simple, and uniform, it will give consumers confidence in your products,
  3. Clarify your comment (the one I mentioned above), regarding the diodes per watt, and why the G8600 only has 3.45 diodes per watt, when you mentioned that you need to add more diodes to reach the same level of wattage.

Thanks again Spider Farmer, love your products, hoping to make a purchase decision once I have more information!
 
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