Abstract: A modular light system for a spa where replacement of a light emitter, such as but not limited to a LED and/or a cable is accomplished without needing access an area around a tub in the spa. Furthermore, replacing the cable and light emitter can be accomplished individually. The system comprises a light emitter, a power source, a controller, and a plurality of cables. When the light emitter fails, it is disconnected from the cable and replaced with a working light emitter. When the cable fails it may be disconnected from the light emitter and replaced with a working cable.

Abstract: A method of accurately controlling at least one of an intensity, brightness, dimming or color mixing of a LED, the method comprising monitoring an actual current flowing through the LED, selecting a specific current based on at least one of a desired illumination intensity, a desired brightness, a desired dimming, or a desired color mixing, comparing said actual current and said specific current, and if a difference exists between said actual current and said specific current, adjusting said actual current to agree with said specific current.