Orient 18G Lunar 1.5-Ton Heat and Cool DC inverter Split Air ConditionerDiscrpiton. The Orient 18G Lunar is a 1. 5 Ton Heat and Cool DC inverter Split Air Conditioner It is part of the Ultron Lunar series and comes in several color variants, such as floral black and golden. Specification. Capacity: 1. 5 tons (18,000 BTU). Technology: Features T3 tropicalized inverter technology, which provides efficient cooling in ambient temperatures as high as 60C. A factory installed Wi Fi kit is available on some models for smartphone