The predecessor of the Brite system is the Extreme Brite underwater green fishing light. The mercury vapor system produces a 12,000 lumen rating, with a 12-15 diameter, and a light green tint. The system has a warranty of 3 years on the box, and 1 year warranty on the bulb. The life expectancy on the bulb is 2-3 years. This bundle of 3 Extreme Brite lights makes this a great option for lighting your entire dock or for commercial property lighting.