Specifications:

Black 4-inch [carton packaging] one electricity and one charge

Black 4-inch [carton packaging] two electricity and one charge

Black 4-inch [plastic box packaging] one electricity and one charge

Black 4-inch [plastic box packaging] two electricity and one charge

Black 6-inch [carton packaging] one electricity and one charge

Black 6-inch [carton packaging] two electricity and one charge

Black 6-inch [plastic box packaging] one electricity and one charge

Black 6-inch [plastic box packaging] two electricity and one charge