With the Nitelighter Ultra Pool Lighting System you can enjoy extended hours of fun! The NiteLighter Ultra provides just the right amount of light to set the mood after the sun goes down. Select the lower 20-watt setting for romantic evening swims, or the extra bright 50-watt setting for parties or exercise. Use the built-in timer to illuminate your pool for 3 hours automatically, or over-ride that with the manual on/off switch. Safe and easy to install without dropping your water level, removing wall fittings or tying up your return line. Includes a long-life halogen bulb, 12-volt transformer, stainless steel mounting bracket, and 28-feet of cord. Version for soft-sided pools is also available.