A Detailed Look into the Fluence Bioengineering Spyder 2P
Let’s take a look at Fluence Bioengineering’s Spyder 2P LED Fixture. The following is divided into the following sections:
- Introduction
- Shipping and Delivery
- Specifications (OEM specification claims)
- Construction
- Our Measurements
- Discussion (comparing the supplied specification and marketing to our measurements)
Introduction
Overgrow was donated a new Fluence fixture from a generous OG patron. The only requests from the patron were:
- That OG evaluates the fixture performance metrics,
- OG can do with it as they please and
- OG will inform the community as to what a bunch of handsome devil’s they are. There was a photo of themselves included with the fixture:
What a handsome fellow.
In this thread you’ll find our completed evaluation but we were left with the question, what now?
Well, @Jay was the lucky recipient of this fixture as LJ said let’s give it away! Over here:
So, Jay, please read on to view the performance metrics of your unit!
Shipping and Delivery
Fluence has traditionally utilized just-in-time (JIT) and lean manufacturing which, in their words, means build-to-order. This allows the OEM to reduce costs by reducing the amount of product sitting in the supply-line. The premise is that they have a tuned and efficient manufacturing process allowing them to quickly build and ship to a customer on demand. Hot off the presses as they say.
There are a variety of reasons to take this approach some which include taxation, carry, and inventory costs. It also ensures that they do not end-up over-producing units while reducing the need to predict market demand at any one time. Not to mention being able to use the most modern and cool-kid business buzz-words.
This works great in theory, but reality is a different story. Currently, in order to obtain a Fluence fixture, you’d have to wait upwards of 8 weeks before your unit is shipped.
If you are planning to purchase from Fluence, you are committed to something of a wait depending on the market demand. These are not in the “cheapo” fixture category and at this price level, one would assume you’ve done some planning and research such that the lead-time is really not an issue.
For this overview and test, the donor this unit new from a third party vendor that had done the leg work to obtain the unit ahead of time. As such, I was able to receive the fixture in a much more timely manner.
I have had some issues in the past with how Fluence has packaged their products with some of the componentry loosely packed and bouncing around within the shipping box. I’ve written to the CEO discussing how this is a poor practice and can lead to both cosmetic and premature failure of the unit from shock. See:
This fixture has improved packaging with the heavy power supply and some of the miscellaneous componentry individual boxed and tightly packed into place. However, the AC power cord and the DC interface to the LED fixture were loosely thrown into the box and allowed to bounce around. A small amount of kapton tape would have easily fixed this issue.
Shipping is something of an art. In fact, there are engineers that spend their time just thinking about such things. While I see something of an improvement from past experience, Fluence does need to stay vigilant on the QA during packaging. The Blue and Brown team will find any packaging weakness possibly leading to a dissatisfied customer (that was waiting a really long time to receive the fixture).
In any case, the fixture did arrive in a big box for a big fixture. Despite some loose wiring harnesses, there was only minor cosmetic marking and no noticeable physical damage:
Specifications
The following are the manufacturer’s specification for the Fluence Bioengineering Spydr 2P as taken from the included specification guide:
Specification Guide (click to expand)
SPYDR-2p-spec-sheet-181119-1.pdf (424.5 KB)
FL-SpecSheet_SPYDR2p47_WEB_2019-09.pdf (1001.6 KB)
Dimensions and Weight (click to expand)
Length: 47.0 inches (1194 mm)
Width: 42.8 inches (1087 mm)
Height: 4.0 inches (102 mm) with power supply mounted on fixture.
Height: 1.26 inches (32 mm) without power supply mounted on fixture.
Weight: 16.7 lbs (7.6 Kg) fixture only
Weight: 7.5 lbs (3.4 Kg) power supply only
AC Power Consumption (click to expand)
Operating Voltage: 100-277 VAC
Typical Current Draw:
5.43A @ 120 VAC,
2.69A @ 240 VAC,
2.28A @ 277 VAC
Operating Environment (click to expand)
Temperature: 95F (35C) Maximum
Orientation : LED emission facing down
Lifetime (click to expand)
LED expected output : L90: > 54,000hrs
Warranty : 5 year
Construction
Mechanical
This fixture has a large mechanical footprint with a lighting area designed to fit within a 4ft x 4ft area.
Traditionally, I’m more use to the smaller, more modular fixtures and simply ran out of space to capture a full profile with the camera. It’s big. So, it’s taken me some adjustment to handle this thing without bashing myself in the head or knocking over my coffee. But it’s also clean, compact, and very much suitable for top-lighting style application with a profile that’s compatible with “standardized” citizen grow-ops.
The fixture arrived folded into a clam shell arrangement thanks to 180 degree articulating hinges.
Hinge:
You simply fold open the the two half to access the full array of LEDs:
Due to the hinge, I could see some adventurous souls utilizing this for side-lighting project and wrapping their plants with a couple of these, as well. A very intense side lighting, that is.
There are a total of six LED “slats” equally spaced and fixed into place to the frame. Unlike previous generation Spydr fixtures, the distance between the individual slats is not adjustable. This is somewhat sensible in that the control of the lighting spread and PPFD becomes a known quantity based on the optical engineering of the unit. What you do get out of fixtures that consume a large area with spread out LED elements is an even and consistent PPFD over the intended area.
Each slat is composed of an aluminum reflector shroud that also serves as a heatsink. This unit is passively cooled meaning there are no fans included to contribute to noise. Passively cooled fixtures will also add heat into space during operation. As with all passively cooled equipment, it is suggested that some amount of airflow exist to help move heat away from the fixture and to protect the LED componentry from excessive temperatures and to also consider heat rise when designing for an enclosed area.
An LED PCB strip array consisting of 342 yellow/blue white LEDs along with 12 evenly spaced far red LEDs is mounted to each slat for a total of 354 LEDs. Across all six slats, this amounts to a total of 2124 individual discrete LEDs for this fixture.
Weather / Ingress protection / IP Rating
The Fluence Spydr 2P is IP66 rated. What this denotes is that the assembly has been tested for protection against and to safely operate in a specific environment. The two digit number “66” indicates the level of protection and follows the following format:
(6) No ingress of dust; complete protection against contact.
(6) Water projected in powerful jets (12.5 mm nozzle) against the enclosure from any direction shall have no harmful effects.
This is a nice feature potentially making this model useful in environments with hired personnel and greenhouse like conditions. The home hobbyist and DIY’er may scoff at this feature as being useless to them while others that have an eye towards safety will find this feature comforting against the occasional misdirected water spray.
Liquid Tight Fittings
Throughout the design, Fluence has chosen to employ liquid tight electrical fitting and gaskets in areas sensitive to moisture.
Power Supply
This is an unusual power supply. It’s something a nesting Russian doll with an external case that wraps an internally cased power supply. Nice looking. Well constructed. But an odd design. And big.
Note the scuffing on the plastic case from tooling of the connector. In a well tuned manufacturing process this should not occur and would be considered a reject. “Niggles” since there is no functional affect but it is a QA item that projects the level of detail taken across the manufacturing process. And, at this price point…
Dimming
The power supply has a dimmer input that accepts 0-10VDC or an PWM input. It utilizes an LLT quick connect fitting and Fluence includes a pigtail connector so that you can wire it up to dimmer controller. I have, unsuccessfully, tried to source the same connectors to DIY cables without having to purchase them from Fluence. I have not yet determined the correct mating connector. LLT M19 are slightly too large.
Fluence does have an external dimmer controller that can be purchased but it is rather basic in functionality.
LED PWB Construction
Conformal Coating
Conformal coating:
The conformal coat appears to be a siloxane type of coating. The application of the coating on the LED array by Fluence is the best I’ve seen to date when compared to other manufacturer’s that use a similar material.
Color Palette
Fluence utilizes three different phosphors, white/blue, white/yellow, and far-red. There are no UV specific LEDs on this fixture:
Ok, let’s power her on and turn a look-see:
Measurements
AC Power Consumption (no dimming)
Measurement Instrument : Fluke 43B Power Quality Analyzer (click for details)
Instrument : Fluke 43B
Type : Multi-meter
Measurement Range: Voltage 5.000V to 500.0V, Current 50.00A to 500.0kA
Accuracy: Voltage ±(1 % + 10 counts), Current ±(1 % + 10 counts)
Calibration Source : Manufacturer
Measurement Instrument : Pico TA189 Current Probe (click for details)
Instrument : Pico TA189
Type : Current Probe
Measurement Range: 0-30A
Accuracy: ± 1% of reading ± 2mA
Calibration Source : Built-In
DC Power Consumption (no dimming)
Measurement Instrument : Fluke 43B Power Quality Analyzer (click for details)
Instrument : Fluke 43B
Type : Multi-meter
Measurement Range: Voltage 5.000V to 500.0V, Current 50.00A to 500.0kA
Accuracy: Voltage ±(1 % + 10 counts), Current ±(1 % + 10 counts)
Calibration Source : Manufacturer
Measurement Instrument : Pico TA189 Current Probe (click for details)
Instrument : Pico TA189
Type : Current Probe
Measurement Range: 0-30A
Accuracy: ± 1% of reading ± 2mA
Calibration Source : Built-In
Power Consumption (click to expand)
As measured at the output of the Fluence power supply:
Calculated Supply Conversion Efficiency: 92.6%
Temperature (no dimming)
Measurement Instrument : Fluke 80T-150UA Universal Temperature Probe (click for details)
Instrument : Fluke 80T-150UA
Type : Temperature Probe
Measurement Range: -58 to +302 °F
Accuracy: ±1.8°F from +32 to +212°F
Calibration Source : Manufacturer
Measurement Instrument : Fluke 576 Infrared Thermometer (click for details)
Instrument : Fluke 576
Type : Temperature Probe
Measurement Range: -25 to +1600°F
Accuracy: ±1.5°F from +23 to +1600°F
Calibration Source : Manufacturer
Measurement Instrument : Flir A35 Thermal Camera (click for details)
Instrument : Flir A35
Type : Thermal Camera
Measurement Range: -25°C to 135°C (-13 to 275°F) / –40°C to 550°C (-40 to 1022°F)
Accuracy: ±5°C (±9°F) or ±5% of reading
Calibration Source : Self / Manufacturer
Operating Temperature
Beginning Surface Probe Measurement: 74.66°F (23.7°C)
Power supply case at 1.5 hours: Surface Probe 126.68°F (52.6°C)
Heat sink fin at 1.5 hours: Surface Probe 113.18°F (45.1°C)
Power supply case at 1.5 hours: Infrared Probe 136.2°F (57.89°C)
Heat sink fin at 1.5 hours: Infrared Probe 127.2°F (52.89°C)
Hotspots: Some regions of LEDs show mild hotspot differential of ~4F (click to expand)
Hotspots, false color images, @1.5 hours non-dimmed on PWB. Minor temperature variation across PWB of about 4F with maximum LED temperature recorded at approximately 130F.
Thermal Image of Operating Assembly (click to expand)
Fixture thermal image (from bottom), false color image, @1.5 hours non-dimmed
Fixture thermal image (from top), false color image, @1.5 hours non-dimmed
Power supply thermal image (from top), false color image, @1.5 hours non-dimmed
Lighting Metrics
Spectral Power Distribution (SPD)
Measurement Instrument : Stellarnet CXR-SR-100 (click for details)
Instrument : Stellarnet CXR-SR-100
Type : Spectrometer
Bandwidth : 220 to 1100 nm
Resolution : 4 nm
Optical Fiber : F600 VIS/IR
Sensing Head : Cosine Corrected Adapter CR1
Calibration Source : Stellarnet SL1-CAL (300-100nm) Tungsten-Halogen Lamp
18 inches from fixture, open air, center spot, 30 minutes to stabilize (click to expand)
Center Point, Open Air Measurement:
Spectrometer and Quantum Sensor Cosine Heads:
Spectrometer Electronics:
Spectral Distribution :
Blue(400 - 500nm): 16.24%
Green(500 - 600nm): 38.14%
Red(600 - 700nm): 45.62%
Total :100%UVB(287-320nm): 0.01%
UVA(320-400nm): 0.12%
Violet_Blue(400-475nm): 11.91%
Cyan_Green(475-550nm): 18.58%
Green_Yellow_Red(550-700nm): 65.56%
FarRed_NearIR(700-850nm): 3.82%
Total :100%
Radiant Energy and Ratios
The following metrics details the measured radiant energy 18 inches from the fixture, open air (no nearby reflective walls), center spot (at the center of the fixture), after allowing 30 minutes for the fixture to stabilize:
Integral radiant (400-700nm): 186.4 W/m2
Integral radiant (350-840nm): 192.3 W/m2
Lumens (m^2) : 54821
Spectrometer PFD (400-700nm): 889.56 umol / m2 / s
Spectrometer PFD (350-840nm): 925.5 umol / m2 / s
Quantum Sensor PFD (400-700nm): 850.4 umol / m2 / s
YPF (360-760nm) : 791.86 umol / m2 / s
YPF/PFD: 0.89
PSS: 0.86
DLI index [12 hours] : 38.4
Note: The traditional PAR range is defined as being 400nm-700nm.
These types of units are intended for close-in use and, as such, is specified for a recommended minimum height above canopy at 6 inches. I find this to be absurdly close but:
Spectrometer PFD (400-700nm): 1252.92 umol / m2 / s @ 6 inches.
Quantum Sensor PFD (400-700nm): 1219.9 umol / m2 / s @ 6 inches.
Output Stability
Output power as measured with the Apogee Quantum Sensor over an ~90 minute period from power-up shows a small amount of variation of ~3% as the unit heats up. Measured 18 inches from fixture, open air, center-point.
Color Quality
The following graphs details how the human eye will perceive colors that are illuminated by the fixture. This has little to do with the quality of light as perceived by the plant but rather how easy it is for humans to discern colors or how accurate the colors in a photograph under illumination will appear.
Chromaticity 3613K (click to expand)
CCT: 3613K
Chromaticity Coordinates: (x=0.2375, y=0.4971)
Dominant Wavelength: 604.5nm
Purity: 28.1%
A CRI rating of 93 is high. This indicates items illuminated with this fixture will result in accurate colors. A good guide discussing CRI and why it is useful can be found here:
PAR Map
The following graphs illustrates the PAR as measured over the suggested 4ft x 4ft area with reflective walls. These graphs are useful to determine the amount of intensity variation that may be expected over the suggested grow area at specific hanging heights.
Measurement Instrument : Apogee Instruments SQ-250 (click for details)
Instrument : Apogee Instruments SQ-250
Type : Quantum Sensor
Bandwidth : 389 to 692 nm ±5 nm
Resolution : 0.1 µmol*s / m^2
Sensing Head : 2PI Cosine Corrected
Calibration Uncertainty : ±5%
Calibration Source : Manufacturer Calibration
Source Correction Table :
From the PAR map we calculate an averaged PPFD over the 4x4 area at 6 inches height of 958 umol / m2 and 912 umol / m2 at a height of 12 inches. For an area of 16 ft2, we have a conversion factor of 1.48645 to m2 which produces an estimate PPF of 1424 umol / m2 for the six inch distance and 1356 umol / m2 for the twelve inch distance.
Manufacturer’s Warranty
Specification notes a limited 5 year warranty for the Spyder 2 series.