T8 led tubes type single double wire end direct input 5 years warranty 140lm/w 18w 4ft t8 led tube type a +type b ul dlc 4.0 Led tube tubes lighting type diagram lights types difference between lamps installation straits
LED T8 Tubes (Type B) – Sunpark Electronics Corp.
Led t8 tubes (type b) – sunpark electronics corp.
Led tube lamps
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