It depends on your facility and it depends on what you want to do as a business owner. When we look at doing a lighting retrofit, there’s a number of different paths that we can go down. We can do the simple type of LED lamp swap, or we can do a large scale control schematic where we go in and we give you as the owner tons of control, tons of programmability in your system. Those both have costs that need to be accounted for and it effects the return on the projects. Typically one of the things that we see as a company that does LED retrofits, is the up front cost can be prohibitive to an entity to doing a lighting retrofit. Because of that, we work closely with the utilities, the Center for Energy – we find rebates, we find incentives, we offer funding sources for commercial entities – to achieve their long term sustainable and lower operation cost goals.