Custom kelvin temperatures available upon request. Lighting is a crucial element in any terrarium or vivarium design. Through research & R&D, we are happy to offer one of the best lights in the industry. Coming in at 98CRI with a 6500K color spectrum, your greens will pop & your reds will be deeper. Animal behavior is increased. World class visual appearance. This listing is for our 12″ Quad & is designed for your 36″ wide tanks & can penetrate up to 36″ tall. Can also be used on 4 seperate tanks under the same power supply. Extension cables required. This kit produces roughly: 448 PPFD 21,000 LUx 48W 145 Lumens per Watt Kit includes power supply with 6ft cord, inline dimmer, & splitter. Thrive Ecosystems Blended Spectrum 12″ Quad Vivarium/Terrarium Lights