The e-Vision electronic ballast for HID lamps provides IntelliVolt or dual-wattage lamp operation. IntelliVolt allows ballast operation with input voltages from 120V to 277V, 50 Hz or 60 Hz. The ...

Fairhaven Shipyards in Bellingham, Washington purchased a barge, Lucky Angel, with the intent of towing it from China to the U.S., refurbishing it and using it as a submersible dry-dock. The 435 ft ...

Followers of the Ballast Water Treatement System (BWTS) situation (ie. presumably anyone reading this publication) were heartened last month when the U.S Coast Guard announced its acceptance of nine ...

In September 2000, the U.S. Department of Energy (DOE) amended the existing conservation standards for fluorescent lamp ballasts when it published standard 10 CFR Part 430, Energy Conservation Program ...

A ballast for a fluorescent lamp has two primary functions: Provide high initial voltage to start the lamp; and regulate lamp current during operation. Common electronic ballasts convert 60-Hz line ...

In part 1 we discussed rectifying the ballast AC current to DC and we showed an open load protection circuit. Direct replacement of fluorescent tubes with LED assemblies can lead to uneven lighting.