A lighting system for a habitat including one or more light emitting diode capsules, wherein the capsules are configured to emit red light in the wavelength range of 615 nm to 630 nm, green light in the wavelength range of 510 nm to 530 nm, and blue light in the wavelength range of 455 nm to 475 nm. The system may also include a carrier, to which the light emitting diode capsules are mounted including circuitry for controlling the light emitting diodes.