product description:
Protopia Super High Pressure Sodium (HPS) lamps are the classic and most popular choice for flowering rooms.
Protopia HPS lamps can be used through the vegetative and flowering stages, but the yellow spectral output makes them optimal for flowering.
Performance Data
Lamp Wattage (W): 400
Light output ( Lumens @ 100hours): 56000
Lumens per Watt (lm/W): 140
Rated life (Hours @ 10 hour/ start): 24000
Correlated Color Temperature (K): 2000
Color Rendering Index (CRI) or (Ra): 25
Photon flux (μmol/s): 700
Burning Position: HOR±15°
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