ChilLED Gen 2 Panel Specs & build info – 175W/207W PCB (with a little bit of the 90W PCB info)

For everyone that has some of these and needs the technical info, chilled pulled it off their website so finding this has been a real pain in the arse.
Enjoy

Oh yeah, nice little 'secret'... not sure about the 90W PCBs but on the 175W PCBs you can actually run the white channels at 1400mA instead of 1050mA. That makes it a 207W PCB.


High efficiency 175W Gen 2 LED grow light PCB pictured

2.67 – 2.97 μmoles/joule

LED Chips Used on Gen 2 Max Yield PCBs

• Samsung LM561C 3000K S6
• Lumileds Luxeon C Red
• Lumileds SunPlus 20 Deep Red
• Lumileds SunPlus 20 Royal Blue
• Everlight EAUVA35352

How Many Boards Do I Need For My Area?
The number of boards you need will depend on what photon flux (light intensity) you are looking to achieve per given area.
If you are not supplementing with CO2 and are growing a fruiting/flowering crop, then stay around 900-1,000 micromoles.
If you are supplementing with CO2 and are growing a fruiting/flowering crop, then you can go up to 1,200-1,400 micromoles.

Note: Adjust your room air temperature higher under LED lighting, about 85 degrees fahrenheit and 90 degrees under high light/CO2 conditions.
EXAMPLE: Your area is 4ft by 4ft and you want 1,000 micromoles PPFD, 4ft x 4ft = 16 square feet.

175W PCBs: 16 square feet x 0.238 PCBs per square foot = 3.808 PCBs, round to nearest whole number = 4 175w PCBs needed to get 1,000 micromoles PPFD average in 4 x 4ft (16sq ft) area.

90W PCBs: 16 square feet x 0.476 PCBs per square foot = 7.616 PCBs, round to nearest whole number = 8 90w PCBs needed to get 1,000 micromoles PPFD average in 4 x 4ft (16sq ft) area.

175W LED PCB (At 1050mA drive current) – System Level
Factored total losses of 18.5% (about 2.2um/j @ wall, to be conservative)

90W LED PCB (At 1050mA drive current) – System Level
Factored total losses of 18.5% (about 2.2um/j @ wall, to be conservative)

Which PCB Do I Need, 175W or 90W?
For small areas and even light coverage, it is better to use more boards of lower wattage (90W).
For large areas it’s more economical to use less boards of higher wattage (175W) and still get even light coverage.

What Hanging Height Should I Use?
For small areas: 18-24in
For large areas: 24in or higher if ceiling height allows it.

What PCB Spacing/Arrangement Do I Use?
Space boards evenly within your canopy for best light coverage.

Which Drivers Do I Need?
Each PCB color channels wired in series, use table below:

Do I Need To Actively Cool The Heatsinks?
See the cooling requirements table below:

What Size Fans or CFM Do I Need?
The 120mm fans are needed for fan cooling the heatsinks, one fan per pair of single heatsinks or per 1 double heatsink.
For ducted air cooling: 175W PCBs driven at 1050/700mA need 40 CFM per single heatsink or 80 CFM per double heatsink.
90W PCBs driven at 1050/700mA need 20 CFM per single heatsink or 40 CFM per double heatsink.

Electrical Specifications – 175W LED PCB

* Allow for bin variation, you may not hit the exact numbers here, but should be within 5% or so.
NOTE: It is always wise to leave some headroom in the voltage of your driver when designing your driver/LED pcb circuits, 5-10% should be sufficient in most cases.

*2 Flux & Efficacy data based on “board level” independent lab report of boards populated with S5 bin chips and extrapolated to S6 bin production boards.
Board level means that only the board or PCB was considered, nothing else. System level flux and efficacy will always be lower vs board level tests. As it would include power conversion losses in the power supplies, fans, optics/cover losses, etc.

WARNING: Potentially fatal high voltages may be present on driver wires, interconnects, LED module boards, etc. Extreme care must be exercised when working with or around live exposed electrical circuits (best not to do it at all – why risk your life). We highly recommend placing modules and drivers within a fully encapsulating enclosure and grounding the enclosure if its metallic/conductive.

Thermal Switches for the Gen2 are here. Most people that bought the modules didn't include thermal switches but they are essential if you dont want to burn out a non-replaceable PCB.: