10 Foot 48 Watt R17d LED Single or Double Ended Ballast Bypass Sign Tube 4000K/5000K/6500KIntroducing Satco's Color Selectable LED Sign Tubes! The high output tubes from Satco is the perfect solution for retrofits or new sign installations. There is no need for an external driver or ballast, making it the fastest way to upgrade a sign to LED. Maintenance professionals can install these LED sign tubes in five minutes or less! These tubes are available in an array of lengths and can work with double sided or single sided signs, therefore