Sun System Yield Master Ii Reflector - 4" Air Cooled (Optional)

The lamp cord & socket are built into the reflector.
95% reflective German aluminum interior for maximum output and uniformity.
Durable white powder coated finish.
Compatible with all Sun Systemî remote ballasts.
Oversize design is excellent for large growing areas.
Easily air-cooled by attaching optional 4 fittings & glass.
Dimensions: 20 1/4 Long x 21 Wide x 7 1/2 Tall).
Fabricated and assembled in the USA with US and globally sourced parts.