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 18″ Double & is another great option for 18-18-24 or 18-18-36 terrariums This kit roughly puts out: 949 PPFD 54,000 LUx 40.9 DLI 32W 145 Lumens per Watt Kit includes power supply with 6ft cord, inline dimmer, & splitter. Thrive Ecosystems Blended Spectrum 18″ Double Vivarium/Terrarium