Maxibright Daylight 315w Digital Ballast low frequency square-wave power pack The Daylight 315 digital power pack for horticultural lighting from Maxibright is compact, lightweight and silent running. With all the features of the Maxibright Digilight range, this stunning power pack precisely drives 315W CDM/CMH lamps. The Daylight 315 when used with the 315W CDM/CMH lamps ensures healthy abundant yields, excellent PAR output levels per watts of power consumed. Specifically designed to run Maxibright & Philips 315W CDM/CMH lamps correctly Low frequency square-wave power pack Small, lightweight & silent running Soft start technology End of lamp life detection Dynamic frequency control Short circuit protection Thermal protection