Abstract: An LED-based lighting system is provided for aquariums, habitats, farms, terrariums, and/or enclosures for keeping animals and/or plant life and/or other enclosures. In one embodiment, the LED-based lighting system includes an LED circuit board or strip adapted to provide a particular wavelength of light, such as, red, blue, or green light. Several circuit boards or strips may be strung together end-to-end or side-to-side and, while each circuit board or strip may be adapted for providing a particular wavelength of light, the several circuit boards or strips may be adapted to provide several wavelengths of light, e.g. a mixture of spectrum. The several circuit boards, while providing different wavelengths of light, may be substantially the same in most respects except for the LED's positioned on the strip and a jumper selectively connected to provide a control signal line adapted for controlling the particular wavelength LED installed on the respective strip.