The 3 solar underwater spotlights can be placed under water in your pond stream brook banks of your pond or outside of the water for effective illumination if you want to ensure that the spotlights stay in place you can put stones in them the powerful crystaline solar module can be screwed in place placed where needed or can be attached to a post using the mounting clip the system can therefore be used wherever you wish the light switches on automatically when dusk falls and switches o