how do you wire an old 4 wire ballast to the new electronic ballasts. Thanks John

Hello and thanks for looking. I have an opportunity to join a new professional group. One thing I'm not thrilled about is that the offices are in the middle of the building and don't have windows. They also have 18' ceilings. There are offices above so no practical way to punch in skylights. Right now there are just a couple of standard industrial fluorescents with low kelvin bulbs. I can get any kind of lights I want but am not up on the latest technology. I'd need to address: [LIST] [*]how to get a good, natural light spectrum for visibility [*]how to keep the room visually appealing for myself and clients and [*]how to get light focused on the work area from two stories up. [/LIST] My current thinking is that I'd probably get a hanging fixture to drop down for illuminating the whole room and a desk lamp along with a couple torchieres -- but I'm not married to it. Wall sconces are probably further out of the picture because of the wiring and switches but I could be talked into that too. I'm out of the office a lot and am not chained to the desk when there so I can still get some vitamin D. The lobby is a storefront with full windows so I can even read on the couch with a laptop. Any ideas on how to make the office more ergo-friendly would be appreciated. I'd have to pay for it all but as long as it didn't involve knocking down walls, the improvements would be my call. The lease runs a few years but there are options on other space in the complex. For now, it is what it is and not a deal-killer if the operational issues can be be resolved. I've seen some very attractive DIY LED strip fixtures on the web. FWIW, in a former (very former) life I was a builder and electrical contractor and have a full woodshop to make almost anything I can get in my mind's eye. Unfortunately, there are many times more hits on plants for no-window offices than there are ideas for light fixtures -- especially for that high up. Thanks for your help, sh