1.Voltage available: 110V/220V 2.Frequency: 50Hz/60Hz 3.Luminous coefficient: 95% 4.The Average life is during 10000hrs. 5.The Shell抯 material of Ballast is made by Plastic of PBT or PC. 6.Every product must be tested by -5℃ low temperature , voltage descend to 10%, in order to assure it working normally at changeable temperature. 7.Every product must be tested by 85℃ high temperature, voltage rise to 15％, in order to assure it working normally at changeable temperature. 8.The Product Packing available: one pc with an inner box, 30pcs/carton for Low Power Factor 9.Apply to the luminaire which can be suitable it for any Spec., and we can design the ballast by the customer for 3*20W, 3*30W, 3*40W, 4*20W,4*30W, 4*40W