Our order for 10 of these arrived with only nine as one of the lamp boxes was empty. The supplier did refund us for the missing lamp but that meant we didn't have the number we wanted. Also, the casing hadn't been properly punched out which meant that work had to be done to remove partially punched out slots. For the cost I guess it shows that if something is cheap in price it's going to be an inferior product. Very disappointing and a lesson learned.