Durable PVC 10 Seconds Lamp Life Tester Meter UV Detector Sensor UVB Test Card UVB Card Indicator

Label:Yes Feature: lightweight, durable, sturdy. Type: UVB Light Test Card. Package: 1pc*UVB Light Test Card. Size: 8.6*5.4cm. Material: pvc.

Made of premium pvc, lightweight and durable. When not in use, you need to put it in a card sleeve or store it in a dark place. Easy to test: Just place the testing card 3.5 inches away from the heating lamp and wait for 10 seconds, which can quickly test if there is an ultraviolet ray.