Specifications Lamp holder: B15d 1*20W 2*20w 2*40w 220V 50HZ/60HZ 110V 60HZ Stainless steel,steel,galvanized sheet,marine light 1. The lights fit for AC circuit, the rating voltage is 220V or 110V, frequency is 50Hz or 60 Hz. 2. For extra application of auto emergency lamp,please specify while placing the order, the type of mini-emergency lamp is B15d,its shade edge is marked with red round. 3.Individual orders are required both for fluorescent tube and mini-emergency .in order to prevent from electric shoce,the light. 4. in order to prevent from electric shock, the lights is equipped with a copper earthing rod with the mark. 5. The protective classes for the lights are IP20,IP22,IP34,IP44,IP55,IP56,IP67 and IP68. 6. The luminaire is made according to the authority China Classification Society in GRANDE ENTRY AND BUILDING NORMS FOR STEEL SHIPS(2001)of Ship Inspection and Testing Bureau of the People's Republic of China. It can work normally under the environmental temperature of -25degree to 55 degree when it is equipped with an ordinary ballast.And its environmental 7. The lampshade of pendant light is made of plastics ploycarbonate,the protective net of shell is marked withF,both the lampshades of ceiling light and wall light adopt the imported white organic glass with the features of non-discoloration and good toughness.