The main lighthouse conversions are at Axim, Cape Three Points and Sekondi, where traditional beacons are being replaced by Tideland's TRB-400, a longrange rotating beacon designed specifically for lighthouse conversions. The advanced gearless direct drive turntable allows the lantern to be fitted in an existing lighthouse where the building is in good repair but the lighting equipment does not meet current standards, or is difficult or expensive to maintain.

TRB-400 features ultra-efficient optics producing a high-intensity beam with a range in excess of 23 nautical miles and a sealed upper housing, which eliminates the need for cooling fans or venting. Both the drive system and the TRB-400's lampchanger units include built-in facilities for remote monitoring, either by radio, satellite or telephone, using the Tideland NavLink system. The whole unit weighs only 16kg (36lbs) and measures 889mm (34 inches) in height.

It is designed to operate at temperatures ranging from -40infinityC to +55infinityC and in humidity up to 100%.

At Takoradi, a Tideland solar system is being installed in the lighthouse, while the port and starboard beacons are being replaced with solar-powered ML-300 lanterns mounted respectively on red and green GRP towers. ML-300 is a lightweight, corrosion-resistant lantern featuring a one-piece acrylic Fresnel lens equipped with Tideland's TF-3B MicroPower Omnibus II flasher/ lampchanger equipment, which incorporates a timer circuit card to permit input voltages up to 36V and provides up to 256 user-selectable flash codes.

MJ Information No: 21309