Create professional-quality media in your grow room with the Catalyst Phone Clip Photo Filter. The Catalyst clips securely to your cell phone or tablet, balancing the colour spectrum with a high-quality Carl Zeiss lens for insane optical clarity. 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. The HPS Lens provides optical clarity when used under HPS (High-Pressure Sodium) lights. The LED Lens provides optical clarity when used under MAGENTA, RED, or PINK spectrum LED grow lights.