Pro Reflector 6-sets in bulk:

Now includes mogul socket and 15' cord set.

The Pro Reflector is a high performance reflector designed to deliver the brightest light at a budget price. It accepts virtually all wattages and types of halide or sodium bulbs, including our exclusive Agrosun® enhanced halides and sodiums. patented worldwide: US, Canada, Australia and UK.

Reflector Size: 5-3/4"H x 19-1/8"W x 19-3/4"L
Accepts: Sodium 400, 430, 600, 1000 - Halide 400, 1000

http://www.hydrofarm.com/downloads/fc/10359_HF_proinstruc2004.pdf