The Kasco low-voltage WaterGlowTM Submersible Landscape Light extends the beauty of your water feature into the nighttime hours. The light can be fully or partially submerged in the water feature and is precision-engineered to provide years of trouble-free service. It boasts redundant internal sealing with three durable O-ring seals for a fully water-tight design. It also includes thermal overload protection to prevent heat damage to the fixture and bulb. This item does NOT come with a transformer. Customer MUST supply their own transformer.