Amazon.com : iPower 400W CCT 2100K Pressure Sodium HPS Grow Light Bulb Lamp with High PAR Enhanced Red and Orange Spectrums for Plants Growth, Transparent : Patio, Lawn & Garden
Superplant - Ballast magnetic HPS-MH avec fusible - 400W
Digital Greenhouse 400w Grow Light | HTG Supply
Quantum 400w Digital Dimmable Ballast direct from Growers House