Dear sir/madam,we are cetc deqing huaying electronics co.,ltd.we are specialized in electronic ballast&transformer for lamps,all our products can be designed according to your requirements,we wish you will have fun and have chance to do with business with us in the future,if any of our items be of interest of you or you have any question,pls contact with Ann,andy(at)dqhuaying point com Model No. JY**2B5 Fluorescent Lamp T5 Lamp Wattage(W) 2x(14,21,28) Frequency(Hz) 50/60 Rating Voltage(V) 220~240 Abnormally Protection Yes Power Factor 0.98C Lumin 95% THD <20% C.F. ≤1.7 Start up mode Instant Tc <55℃ Case type &dimension(mm) C10:362x29x26 Quantity/Case(pcs) 50 Weight/Case(kg) 10.5 Package dimension(mm) 380X310X155 Minimum Quantity 3000pc/order Certification CCC