P21/5W-BAY15D Phantom LED Bulb - White reverse or daytime

The P21/5W-BAY15D LED Phantom ventilated bulb, equipped with non-visible LED chips, generates no stray reflections.
It is ideal for powerful daytime running lights. (Warning, it can be dazzling.)
This is one of the best camouflage LEDs, thanks to its white shells that effectively hide the LED chips while ensuring a homogeneous light diffusion.
It also features an excellent anti-error system, with an integrated resistor that simulates the original consumption.

In high power mode, this LED offers three times the brightness of a standard halogen bulb (about 400 lumens), reaching up to 1200 lumens.
In low power mode, it delivers 100 lumens, which is slightly higher than the original, but visually very close.

This is an excellent choice for those looking for a discreet LED, both aesthetic, high-performing, and with a high level of anti-error compatibility.

However, even in 2025, error-free dual intensity management remains 100% complex, depending on the models.

⚠️ Compatibility: This bulb is not suitable for sophisticated vehicles equipped with advanced electronic monitoring (notably German brands).
In this case, rather choose this model: 👉 P21/5W LED Bulb Luxoa Super Canbus White