Christmas Light Timer w/ onboard GPS. Made in USA. Zero programming required. Plug & play even self recovers from power outages.Free USPS Priority Mail upgrade arrives in 2-3 days The world's only self-programming Astronomical Timer. US Patent 8,816,842. Internal GPS sets the date, time & location automatically. Auto-synchronizing & maintenance free for life. Outperforms other astronomical timers at a fraction of the cost. 15 year performance warranty - unmatched in the industry. Also available in other variations. Please see our Amazon page. Lightning Arrestor & Surge Protection included.