These are new lamps from an overstock supply. These are not cheap knock-off lamps like commonly found on ebay. Actual brand name Atlantic Ultraviolet STER-L-RAY
GERMICIDAL LAMP
OZONE Producing
Part number GPH287T5VH/4P
287 is the mm in length
T5 is 5mm diameter
VH stands for Very High ozone production. (ex; L stands for Low ozone production found on other lamps)
4P means 4 Pins all on one side of the lamp.
Brand new; packaged inside of a piece of rigid PVC pipe inside of dunnage filled box for secure safe shipment.