Elektrox Super Bloom HPS bulb 250W, 400W, 600W - growland.biz
Amazon.com: iPower 2-Pack 600W CCT 2100K Pressure Sodium HPS Grow Light Bulb Lamp with High PAR Enhanced Red and Orange Spectrums for Plants Growth, 2 Count (Pack of 1) : Everything Else
Amazon.com: iPower 2-Pack 600W CCT 2100K Pressure Sodium HPS Grow Light Bulb Lamp with High PAR Enhanced Red and Orange Spectrums for Plants Growth, 2 Count (Pack of 1) : Everything Else
6) Philips C400S51 Alto Lamps 400W HPS Mogul Base LU400 NEW in Factory Sleeve | eBay