LED lights are great for promoting plant growth in aquariums. The Aqua One Extendable LED light unit provides an energy efficient lighting solution that creates a visually stunning spectrum for enhancing the colours of fish and ornaments within the aquarium. The sliding brackets can be adjusted to suit aquariums from 25 - 45cm wide. The light contains a multi-point switch which can be used to cycle through multiple colour modes. The modes include white, blue & red, or all three colours.