Susbstitution of light sources
Explanation of ppf and ppfd on well established sizes used for grow-tents
The correct substitution of an existing HPS lamp is no rocket science. Especially indoor gardeners often ask us about the required number of SANlight modules for replacing their existing exposure systems. We would like to give you an overview of the most commonly used standard systems for Indoor Plant Breeding.
To help you compare the system better, we provide the most important data such as PPF, power consumption and PPFD plots
600W HPS (high-pressure sodium lamp) @ 1,44m2 / 15.5ft2
• Bulb: Phillips Master Greenpower 600W SE 230V
• Reflector: Hortiline Northstar
• Ballast: Gavita Digi Star 600
• Power consumption: 642W
• PPF bulb: 1100µmol/s
• PPF System: ca. 1000µmol/s
Conditions of measurement
• Distance to sensor: 50cm / 19.7 in
• Environment: HOMEbox Ambient Q120 (120 x 120cm / 47.2 x 47.2 in)
• Measuring grid: 10cm / 3.9 in
Reslults:
Ø PPFD: 515µmol/m²/s
3 x SANlight S4W @ 1,44m2 / 15.5ft2
• Power Consumption 420W
• PPF Light Engine: 1218µmol/s
• PPF System: 1152µmol/s
Conditions of measurement
• Distance to sensor: 30cm / 11.8 in
• Environment: HOMEbox Ambient Q120 (120 x 120cm / 47.2 x 47.2 in)
• Measure grid: 10cm / 3.9 in
Result:
Ø PPFD: 528µmol/m2/s
400W HPS lamp @ 1m2 (10.76ft2)
• Lamp: Phillips Master Greenpower 400W SE 230V
• Reflector: Hortiline Northstar
• ballast: Gavita Digi Star 400
• Power Consumption: 428W
• PPF lamp: 750µmol/s
• PPF system: ca. 680µmol/s
Conditions of measurement
• Distance to sensor: 50cm / 19.7 in
• Environment: HOMEbox Ambient Q100 (100 x 100cm / 39.4 x 39.4 in)
• Measuring grid: 10cm / 3.9 in
Results:
Ø PPFD: 362µmol/m2/s
4 x SANlight S2W @ 1m2(10.76ft2)
• Power consumption: 249W
• PPF light Engine: 720µmol/s
• PPF system: 692µmol/s
Conditions of measurement
• Distance to sensor: 35cm / 11.8 in
• Environment: HOMEbox Ambient Q100 (100 x 100cm /39.4 x 39.4 in)
• Measuring grid: 10cm /3.9 in
Results:
Ø PPFD: 364µmol/m2/s
250W HPS lamp @ 0,64 m2 (6.89 ft2)
• Lamp: Sylvania Growlux
• Reflector: Euro Stucco (Hammerschlag)
• ballast: Lumatek EVSG
• Power Consumption: 275W
• PPF lamp: (n.A. )µmol/s
Conditions of measurement
• Distance to sensor: 50cm / 19.7 in
• Environment: HOMEbox Ambient Q80 (80 x 80cm / 31.5 x 31.5 in)
• Measuring grid: 10cm / 3.9 in
Results:
Ø PPFD: 415 µmol/m2/s
3 x SANlight S2W @ 0,64 m2(6.89ft2)
• Power consumption: 186W
• PPF light Engine: 539 µmol/s
• PPF system: 519µmol/s
Conditions of measurement
• Distance to sensor: 35cm / 11.8 in
• Environment: HOMEbox Ambient Q80 (80 x 80cm /31.5 x 31.5 in)
• Measuring grid: 10cm /3.9 in
Results:
Ø PPFD: 460 µmol/m2/s
4 x SANlight S2W @ 0,64 m2(6.89ft2)
• Power consumption: 249W
• PPF light Engine: 720µmol/s
• PPF system: 692µmol/s
Conditions of measurement
• Distance to sensor: 35cm / 11.8 in
• Environment: HOMEbox Ambient Q80 (80 x 80cm /31.5 x 31.5 in)
• Measuring grid: 10cm /3.9 in
Results:
Ø PPFD: 619µmol/m2/s
150W HPS lamp @ 0,36 m2 (3.89 ft2)
• Lamp: Sylvania Growlux
• Reflector: Euro Stucco (Hammerschlag)
• Ballast: Lumatek EVSG
• Power consumption: 170W
• PPF lamp: (n.V ) µmol/s
Conditions of measurement
• Distance to sensor: 50cm / 19.7 in
• Environement: HOMEbox Ambient Q60 (60 x 60cm)
• Measurinng grid: 10cm / 3.9 in
Results:
Ø PPFD: 407 µmol/m2/s
2 x SANlight S2W @ 0,36 m2 (3.89 ft2)
• Power Consumption: 124 W
• PPF light Engine: 360 µmol/s
• PPF system: 335 µmol/s
Conditions of Measurement
• Distance to sensor: 35cm / 11.8 in
• Environment: HOMEbox Ambient Q60 (60 x 60cm)
• Measuring grid: 10cm / 3.9 in
Results:
Ø PPFD: 538 µmol/m2/s
3 x SANlight S2W @ 0,36 m2(3.89 ft2)
• Power consumption: 186W
• PPF light Engine: 539 µmol/s
• PPF system: 519µmol/s
Conditions of Measurement
• Distance to sensor: 35cm / 11.8 in
• Environment: HOMEbox Ambient Q60 (60 x 60cm)
• Measuring grid: 10cm / 3.9 in
Results:
Ø PPFD: 781 µmol/m2/s
