For safety this ballast uses full circuit protection including open/short circuit, over temperature, over/low voltage, end of lamp life/rectification and EMI suppression. Ballast has an LED indicator and is dimmable for optimum control. The Auroras 315W CMH pulse-start lamp has been engineered for use with Lumatek 315W CMH electronic ballast and is produced using high-grade ceramic arc tube technology and specific horticultural gas blend that creates optimal spectral output for healthy plant growth. CMH technology creates high energy PAR/PPF levels with low heat at full spectrum which is closer to sunlight and produces healthier plant growth and larger yield. With a CRI (Colour Rendering Index) of >90%, CMH is perfect for growing high quality produce and essential oil extraction.The Aurora is supplied with a Lumatek 315-930 (3100K Agro) Ceramic Metal Halide lamp which is also available in 4200K Daylight spectrum format (Lumatek 315-942). The PCA ceramic arc tube permits the lamp to operate at higher internal temperatures increasing colour rendering, output and efficiency. PCA resists interaction with the chemicals inside the tube which stabilizes the chemical mix over the life of the lamp, thereby improving colour consistency and PAR/PPF level maintenance. Pulse-start technology enables faster start up & restrike time, longer lamp life and increased lumen maintenance. The item "Lumatek 315W CMH CDM Aurora Light Electronic Dimmable Ballast Kit Hydroponics" is in sale since Monday, March 9, 2020. This item is in the category "Garden & Patio\Hydroponics\Grow Lighting & Accessories\Grow Light Kits". The seller is "hydroponics4less" and is located in Solihull. This item can be shipped worldwide.