This outdoor underwater safety transformer can be installed below the water surface.
Connection of lights is easy with the innovative connection technology. 

Power Cable Length: 20 ft. (primary)

Simple and safe to use, the Underwater Transformer UST 150/A/01 is compatible with the LunAqua 10 Lighting System. 

It can power up to 150 watts of lights: 4 x 35 watt bulbs, 3 x 50 watt bulbs, 2 x 75 watt bulbs, or 4 x 10 LED spotlights. 

Totally weatherproof, this transformer can be used underwater and offers additional flexibility with a 20 ft. main power cable.