Made in Germany to the very highest standards and using cutting edge lighting science our lamps produce and project the very finest quality of energy rich light. Our dedication to welfare and quality brings peace of mind, not only are our lamps powerful and accurate but they also last far longer than many other brands. Our HO-T5 lamps will remain UV-B potent for 12 whole months of use, when used with the correct controller and for a 10-12 hour day.