UV color-changing test card

$4.80

UV bulbs degrade long before they burn out. This simple color-changing card tells you in 10 seconds whether your lamp is still delivering—so your gecko or tortoise never misses a single ray.

1000 in stock

Instant Color Change – Intuitive UV Detection
Black card with white chameleon pattern turns vivid purple within 10 seconds under UV, and fades back in 1 minute in the dark – quick visual confirmation of UV output.

Reusable up to 500 Times – Cost-Effective & Reliable
High-quality photosensitive coating supports repeated tests; helps monitor UV lamp attenuation and signals when to replace bulbs, preventing health issues from insufficient UV exposure.

Ultra-Thin Credit-Card Size – Easy Storage & Portability
Lightweight, compact, comes with a protective paper sleeve to shield from stray light – store anywhere near terrariums for daily spot checks.

Universal for All Reptile UV Lamps – Simple Operation
Works with UVB/UVA, compact fluorescent, and mercury vapor lamps – just place the card 5cm under the light for 10 seconds, no batteries or complex tools needed. An essential low-cost daily monitoring tool.