Comparison : Item # XM-A258-0404C, RLM-33+
Item # XM-A258-0404D, RLM-33+
Item # XM-A259-0404C, RLM-33-2W+
Item # XM-A259-0404D, RLM-33-2W+
Item # XM-A261-0404C, RLM-63-2W+