RIGID Industries D-XL PRO - Specter-Driving LED - Pair - Black [322613]D XL PRO Specter Driving LED Pair Black With the enormous popularity of the original D Series came the need for a slightly larger, more powerful lighting solution. The RIGID D XL PRO boasts more light than ever before in a housing that measures 4" x 4". Recent improvements to the LEDS in the D XL Series PRO with its new Professional Race Output of up to 170% more raw lumens while maintaining the efficiency that is the hallmark of the entire RIGID