Piranha LED Light Bars are enclosed in acrylic.

Piranha LEDs are sealed onto the acrylic bar but not within the acrylic itself. They are highly water-resistant and bright.
For any application that calls for a short, bright light source and waterproofing is a plus. You can also install the
Piranha LED Light Bar in boats, planes, semi-tractors, box vans, as step lights on decks, in display counters, wherever your imagination takes you. Requires an
Inline Voltage Regulator when the Acrylic Bars are to be battery powered.
Use the attached double sided self adhesive tapes to secure the Acrylic LED Bar to a clean, smooth surface