These 20 watt low voltage economy pond light kits are used by The Pond Digger Construction team in the field. Illuminate ponds, waterfalls and other water features with one of these high quality Professional Pond Light Kits. Nothing impacts a landscape like a well lit waterscape. These Pro Light Kits add value to your water feature with a great warranty. Each light kit includes an underwater light(s) with a heavy duty 20' cord lead, and one 100 watt transformer equipped with a photo-cell that tells your pond lights to turn on and off according to the day and night cycle.