Create professional-quality media with a phone camera filter for grow rooms! The Catalyst Phone & Tablet Camera Filter clips securely to your cell phone or tablet, balancing the color spectrum with a high-quality Carl Zeiss lens for insane optical clarity when used under purple, blurple, or magenta spectrum LED grow lights. The filter screw mount is a 37mm aluminum alloy ring and can be removed and adapted for security cameras. Made from aircraft-grade high-temperature injected polymer for durability. Not for use under full spectrum LED lights.