ive always used tek light by sun light supply .i have several 2 3ft 4 bulb,3 -4ft 8bulb,1 -2 ft 4bulb and i have 1 of their 5ft 4bulb my oldest 4ft8bulb is 8 years old and ive only changed the bulbs, tek light comes with a smart volt ballist which allows the tek light to operate on 110-220-and...