PARUS – LED Grow Light

Water Cooling System

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Innovative Technology

Easy InstallationCan be easily mounted to the previous/New modelEasily apply for green house, plant factory systemApplicable to low-cost and easy solution.

More Energy SavingEnergy saving more than ↓ 25%

More Intensity(PPFD)Light intensity more than ↑ 20%

More Life TimeLife time ↑ 50%~ longer

Applicable modelPGL-PFL SeriesPGL-SPOT SeriesPGL-BOX Series

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Water Cooling Standard

Standard Tb - 55°C

Water coolingTb - 22°C

Applicable model

RA SeriesPGL-PFL SeriesPGL-SPOT SeriesPGL-BOX Series

WATER COOLING SYSTEMInnovation Technology

Simple Design & UsingUsing Clean WaterNo condensation Use less water

Standard Tb 53°C

Water coolingTb 24°C

WATER COOLING SYSTEMTest Data

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Water Cooling LED Standard LED

Water Cooling LED Standard LED

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Problem of plant factory lightingA Plant factory has multi-layered growing systems, so many units of LED lights are installed in limited space. LED light generates heat when it works, If not handle this heat, it will reduce the efficiency and lifetime of LED lights. This heat also increases indoor temperature, high temperature disturb growth of plants, and cause additional energy cost for cooling.

Solution from PARUS (Patent technology)① PARUS plant factory uses the water cooling system which

gathers heat of LED lights and handle it effectively.② This heat can be emitted to outside of a plant factory in

summer time, can be used for indoor warming in winter time. The Water Cooling System can be controlled automatically and reduce energy cost of A/C.

PARUS Water Cooling System① increase lifetime of LED (30000 hr 100000 hr)② increase efficiency of LED (more than 25%)③ reduce energy cost (more than 25%)④ prevent plants from thermal shock and unhealthy growing⑤ use water as cooling media, make system safe and efficient

with low cost

110

100

90

80

70

65

60

55

50

010,000 20,000 30,000 40,000 50,000 60,000 70,000

METAL HALIDE

HIGH PRESSURE SODIUM

PLANT GROW LEDPARUS Water Cooling

% r

ated

lum

en/m

icro

mol

outp

utLa

mp

Rep

lace

men

t at

65%

/ E

OL

Gro

w L

amp

Rep

lace

men

t at

90%

/ P

AR

US

Hours of operation

Estimated Lamp LifeWater Cooling - Plants Grow Light

Commercial Lamp life cycle Plant Grow Lamp life cycle

METAL HALIDE : 900HRHIGH PRESSURE SODIUM : 1,000HRPLANT GROW LED : 45,000HR

METAL HALIDE : 5,000HRHIGH PRESSURE SODIUM : 18,000HRPLANT GROW LED : 82,000HR

Lamp Replacement at 65% / EOL Grow Lamp Replacement at 90%

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FLUORESCENT

STANDATD LED

Refle

ctiv

e Lig

ht O

utpu

t

200%

150%

100%

50%

0%-40 -20 0 20 40 60 80 100 120

Junction Temperature °C

25°C Rating Temperature

AmberRed

Green

White

Blue

Typical Application Temperature

Water CoolingLED Heat sink Effect

* Source : DOE (U.S. Department of Energy)

50%

PARUSWaterCooling

STD

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PARUS temperature of LED Water Cooling (Tc ~24°C = Tj35 ~45°C) General LED lamp life: 30,000 hours, PARUS LED lamp life: over 100,000 hours

Temperature LED Life Time Table

Water Cooling LED

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Power Conversion for "White" Light Sources

Incandescent Fluorescent Metal Halide LEDVisible Light 8% 21% 27% 30%

IR 73% 37% 17% 0%UV 0% 0% 19% 0%

Heat(Conduction+Convection) 19% 42% 37% 70%

Total 100% 100% 100% 100%

Total Heat(IR+Conduction+Convection) 92% 79% 54% 70%

* Source : DOE (U.S. Department of Energy)

사용 조명별 에너지 사용 전환율 및 발생 열 - 참고자료

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Incandesc…

Fluorescent

Metal…

LED Light

Light

Light

Light

Heat

HeatHeat - IR

Heat - IR

Heat - IR

Heat

Heat

UV

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Plant factory lightGrowing bed

(in 1ha)

Power consumption

(per bed)

Powerconsumption

(whole)

Heatgeneration Heat loss

LED 34,500 bed 160 watt 5,520,000 watt 3,864,000 watt 70%

Fluorescent 34,500 bed 320 watt 11,040,000 watt 8,721,600 watt 79%

Heat generation of LED light of 1ha plant factory 3,864KW / hr

It needs 4,000KW/hr of energy for using A/C to cool this heat.

The calculation of power consumption is based on 1,200mm x 600mm of growing bed and 250umol m-2 s-1(PPFD) of light intensity.

Energy cost reduction - more than 25%

Energy Cost발생된 열을 식히기 위한 별도의 에너지 비용 발생

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Energy consumption of plant factory lighting

LED Lighting and Water Cooling System식물공장 사용조명의 에너지 소모 비교

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Energy cost of a Plant factory ; 300m2 (1 year)

Fluorescent LEDPARUS LED

(Patent technology)Note

Power consumption 737,280 KWatt 368,640 KWatt 368,640 KWatt 1200x600 of growing bed x 400pcs

(converted into) Light 154,829 KWatt 110,592 KWatt 110,592 KWatt 250umol m-2 s-1 (green vegetable basis)

(converted into) Heat 582,451 KWatt 258,048 KWatt 258,048 KWatt Thermal energy

Energy for cooling heat 582,451 KWatt 258,048 KWatt 8,000 KWattEnergy for using A/C to cool indoor airA/C energy efficiency 33% (grade 1)

Total energy 1,319,731 KWatt 626,688 KWatt 376,640 KWatt

Energy cost 131,973 USD 62,669 USD 37,664 USD

CO2 emission 559,566 Kg 265,716 Kg 159,695 Kg

Calculation base : - Power consumption(input energy) : 16 hours lighting per day (all year round), 400pcs of growing beds (growing bed 1200mm x 600mm)- Energy converted into light for growing : PPFD 250umol m-2 s-1- Energy converted into heat : heat loss of the input energy- Energy for cooling heat : additional energy to cool heat which LED generates

Fluorescent, general LED The heat radiation of LED increases indoor temperature, so additional energy for cooling (A/C) is needed tomaintain proper indoor temp.

PARUS LED light Applying the patent technology, PARUS Water Cooling System handles heat of LED effectively, reuses heat to warmindoor air in winter, emits heat in summer to reduce energy cost.

Applicable case : Plant Factory systemWater cooling system

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Water Pump

Water Filter

PFL & RBC

Water Cooling Heat Sink

Chiller

Applicable case : Plant Factory system, Green HouseWater cooling system

Applicable case : Green HouseWater cooling system

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Warm WaterCool Water

Water Cooling Pump SystemPump Control & Filter FittingSmall ~ big pump model SeriesWater Pipe 6mm,10mm, 12mm, 18mm, 25mm Automatic Water flow control

Test DataWater Cooling System

Water Cooling Test (PFL 1200 2line)

Dim Level

Wattage PPFD-µmolWater STD Water STD

0 0 0 0 01 33 40 12 162 54 75 30 373 92 121 55 574 127 158 76 715 160 196 93 806 175 231 110 877 208 238 111 878 217 246 112 889 221 255 114 89

10 230 258 117 8911 240 269 118 8912 252 274 120 9013 257 286 122 9014 264 292 123 9015 276 302 125 9016 286 314 126 9117 297 320 127 9018 311 331 128 9119 322 342 129 9220 333 350 129 92

Test conditionModel : PGL-PFL 1200 2line 200WattEnvironment Temp : 21°CWater Temp : 20.5°CPPFD : @800mm

Max testWater cooling Tb(25°C) 333watt,135µmol

STD cooling Tb(77°C) 350watt, 92µmol

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PPFD

Water Cooling Test (PFL 1200 2line)

Dim Level

Wattage PPFD-µmolWater STD Water STD

1 (19.53v) 20 26 12 202 (20.08v) 39 47 58 753 (22.07v) 63 73 124 1404 (23.16v) 90 107 183 2045 (23.97v) 114 129 235 2436 (24.89v) 142 158 292 2927 (25.03v) 147 163 301 2998 (25.17v) 152 170 310 3089 (25.35v) 157 174 319 316

10 (25.50v) 163 179 330 32311 (25.65v) 171 185 341 33212 (25.83v) 175 192 350 34013 (25.97v) 184 197 361 34914 (26.19v) 188 206 372 35915 (26.35v) 189 206 373 36016 (26.60v) 196 38317 (26.7v) 205 396

18 (26.94v) 211 40519 (27.20v) 221 41820 (27.43v) 230 433

Test conditionModel : PGL-PFL 1200 1line 80watt x 2pcs Environment Temp : 21°CWater Temp : 20.5°CPPFD : @260mm

Max test (Dimming Level 15)Water cooling Tb(22.5°C) 189watt, 373µmol

STD cooling Tb(52.0°C) 206watt, 360µmol

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PPFD

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Water Temp PPFD Wattage

18°C 290 675

20°C 280 672

22°C 279 670

24°C 275 674

26°C 273 675

28°C 269 675

30°C 267 675

32°C 264 672

34°C 261 670

36°C 259 670

38°C 257 668

40°C 250 666

42°C 248 666

44°C 245 665

46°C 241 663

PPFD@1meter, no lens, Environment temp 25°C

Water Cooling COB 700 test data

Test conditionModel : RA series (RA-700)Environment Temp : 25°CWater Temp : 18~46°CPPFD : @1000mm, no lens

Max testWater cooling Tb(18°C) 675watt,290µmolWater cooling Tb(46°C) 663watt,241µmol

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WattWater Cooling

PPFDActive Cooling

PPFD%

1 15 14 8 43

2 50 38 29 24

3 100 72 58 19

4 150 99 80 19

5 200 127 100 21

6 250 150 120 20

7 300 172 135 22

8 350 194 147 24

9 400 209 156 25

10 450 227 163 28

11 500 241 168 30

12 550 253 176 30

13 600 264 176 33

14 650 273 178 35

15 680 285 179 37

PPFD@1 meter, no lens, Environment temp 25°C

Water cooling Temp 20°C,Active Cooling environment Temp 25°C(Metal-PCB 65°C, Tj 75°C)

Test conditionModel : RA series (RA-700)Environment Temp : 25°CWater Temp : 20°CPPFD : @1000mm, no lens

Max testWater cooling Tb(20°C) 680watt,285µmolActive cooling Tb(65°C) 680watt,179µmol