readAttributeLampRatedHours(completionHandler:)
Declaration
func readAttributeLampRatedHours(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeLampRatedHours() async throws -> NSNumberfunc readAttributeLampRatedHours(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeLampRatedHours() async throws -> NSNumber