can this be used more then once ?

Yes, it can be used multiple times, just be sure to remove it from light and allow it to turn white completely before using again. It does have a limited amount of uses so it is best to keep in in a dark place when not in use.

I'm looking for a way to test a uvc germicidal light to see if it really is uvc. would these cards be able to rule out uvc if they showed uva?

Card turns color when under UVA don’t know about uvc

How do you know if theres no uvb or uva? if there is still one of the two will it still glow like the same?

Dear Yes,one of the two will it still glow like the same. Hope this can help you. Regards, REPTI ZOO

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描述

🌟 Stay ahead in reptile care with instant UVB insights!

DUAL PACK ADVANTAGE - Two testers included so you can monitor multiple lamps or share with your reptile care community.
INSTANT UVB FEEDBACK - Color shifts from white to purple to instantly reveal UVB lamp strength—no guesswork needed.
EFFORTLESS MONITORING - No batteries or apps required—just hold the card under your fluorescent lamp and watch the color change.
ECO FRIENDLY DURABLE - Crafted from long-lasting plastic and non-toxic materials for repeated use without waste.
POCKET SIZED PRECISION - Compact 3.4 x 2.1 inch design fits effortlessly in your toolkit or pocket.

The REPTI ZOO UVB Tester is a compact, reusable card that measures UVB ray intensity from fluorescent reptile lamps by changing color from white to purple. Made from durable, non-toxic plastic, this set of two credit card-sized testers offers up to 500 uses each, providing an easy, battery-free way to ensure your reptiles get optimal UVB exposure indoors.

规格

Brand	REPTI ZOO
Light Type	Fluorescent
Special Feature	Easy to Use
Specific Uses For Product	UV card measures the intensity of the UVB rays of UV fluorescent lamp.
Light Color	Purple
Voltage	1.2E+2 Volts
Unit Count	2 Count
Number of Items	2
Shape	rectangle
Material	Plastic
Indoor/Outdoor Usage	Indoor
Power Source	Battery Powered
Item Package Quantity	1
Light Source Type	Fluorescent
Item Weight	4.99 g
Product Dimensions	2.1"W x 3.4"H
Accepted voltage frequency	100 to 120 Volts and 60 Hertz
Bulb Diameter	2.1 Inches
Control Method	App
Efficiency	High (inferred from product features and capabilities)
Style	Reptile UVB Fluorescent Lamp Tester Card, Set of 2
Manufacturer	REPTI ZOO
UPC	701630192782
Part Number	UVB01
Item Weight	0.176 ounces
Item model number	UVB01
Color	Purple
Finish types	Plastic
Special Features	Easy to Use
Batteries Included?	No
Batteries Required?	No