RadiumLite valve caps absorb daylight and glow on your wheels after dark without batteries, wiring, or electronics.
They store energy from sun or bright indoor light and radiate a gentle wheel‑level glow for 6–8 hours after a daytime charge. The glow recharges automatically with driving, never requiring cables or a battery change. In cloudy conditions, the duration shortens, but even 30 minutes of direct sunlight can yield several hours of visible light once night falls.
Designed for a simple, tool‑free install, these caps twist on in about 30 seconds and fit standard Schrader valve stems used on most passenger cars, SUVs, trucks, motorcycles, and bicycles. Each pack includes four caps, so you can illuminate all wheels in one go.
- Six color options: green, blue, pink, red, yellow, orange
- Mix or match colors across wheels to fit your build
Prescription details: size 0.67 x 0.51 inches, photoluminescent ABS plastic with UV charging and no electronics, four caps per pack, and compatibility with cars, SUVs, trucks, motorcycles, and bicycles. The caps glow for 6–8 hours on a full daylight charge and are engineered to withstand rain, snow, and car washes since the luminescent material is sealed inside the ABS.
How to light up your wheels in three steps:
- Unscrew your existing valve caps and set them aside.
- Hand‑tighten a RadiumLite cap onto each valve stem until snug—about three turns.
- Drive as usual; daylight recharges the caps automatically for glowing wheels after dark.
