Mark Vang wrote: > Does anyone out there use a large illuminated bar graph in an exhibit? I > am working on a design where the light elements would be concealed behind a > tinted piece of acrylic and I am trying to decide which lighting > technologies exist in a format suitable for this type of display. I could > just put lamps in rectangular light boxes, but I am also looking into any > modular lighting systems which have low power consumption and are cost > effective for a large display of this type. (20-50 elements 3-5 feet high) > A bonus would be a system/light module which can be operated from TTL > level signals or be directly interfaced to a computer via controller card. We provide modular electronic systems for use in display and exhibition. Our Power/Con module is a digitally controlled power outlet. It uses TTL level signals as you requested. When used in conjunction with our Intelligent Interface Module up to four Power/Con units can be controlled by a Mac or PC. For further information on these modules and others please contact me at the following numbers: Mark Fowle INNOVA Applied Technology 2701 St. Louis Avenue Suite C Long Beach, CA 90806-2025 Tel: (562) 427-6726 Fax: (562) 427-0699 Email: [log in to unmask]