Walbest 1PC 600 Watt High Pressure Sodium HPS Grow Light Bulb Lamp - High PAR Enhanced Red and Orange Spectrums CCT 2000K, Ultra Bright 48000L - Walmart.com
SYLVANIA Lumalux High Pressure Sodium HID Light Bulb, ED17 70W, Medium Base, 4000 Lumens, 1900K, Clear - 1 Pack (67504) - High Pressure Sodium Bulbs - Amazon.com
Real Red Mogul Base HPS 600W - Growlite
Digilux Digital High Pressure Sodium (HPS) Lamp, 400W, 2000K
Amazon.com: 48000LM HPS Plant Grow Lamp E40 Base 23Ra High Pressure Sodium Lamp 2000K Yellow Light Energy Efficient Long Service Life 23000 Hours,1000w : Patio, Lawn & Garden
Xtrasun High Pressure Sodium (HPS) Lamp, 1000W, 2000K