Marineland NV33109 Hidden LED System 17 electric dog fence durable and portable exercise pen durable and portable exercise pen features easy set up design with dual folding hinges that make it easy to add or remove panels ue_ddq = 1 •Pleasant general illumination for most aquariums •Control over the light while keeping the consumer’s hand dry •Energy and cost savings •Unlimited opportunities for customized lighting options •Provides powerful light without adding distracting fixtures on top of the aquarium •Completes the illusion of the hidden fixture •Allows the consumer to direct the light where they need it •Bulbs never need replacement •Reduced cord clutter •Adjustable to fit your aquarium •Quality assurance