Terex AL4L and AL5L LED light towers are battery operated, which eliminates engine noise and emissions. LED bulbs have a 50,000-hour life, and the towers provide up to 10 hours of run-time. Both units offer a 30-foot extended height. When stowed, the AL5L has a height of 69 inches and a length of 178 inches; AL4L has a stowed height of 67 inches and length of 178 inches.