Stepdown transformers are simply a piece of equipment that takes a high voltage and lowers it to power a light source.
Block Lighting sells a complete line of lighting ballasts for every application. Just use the drop down menus to find just the ballast for your lighting application. If you're looking for a large quantity quote just send us an email with the SKU and the total quantity... we'll have your quote in an email usually within a few hours. We're here to help!