Product Description The Mechanical Timer with traditional pin setting is used for automating on and off sequencing. With two on and two off settings, the plug-in timer is suitable for outdoor temperatures when placed inside an outdoor transformer enclosure. From the Manufacturer The Kichler 15557BK LED Backlight Outdoor Enclosure Transformer Timer is a plug-in timer suitable for outdoor temperatures and enclosed in an outdoor transformer enclosure. For us in all Plus and Professional Series transformers. Timer dial is clear with LED backlight for easy nighttime setting. Select Kichler mounting posts, stems, stakes and bollard mounting kits to enhance the flexibility and complete the total landscape lighting plan. Consumer surveys consistently put Kichler at the top of their list when it comes to quality, reliability and ease of installation. Quality, reliable power and ease of installation are what contractors want. Safety and performance are what homeowners need, and you can find it all from Kichler.