The PHILIPS 12496SVB2 PY21W SilverVision Halogen Indicator is a set of two amber-colored light bulbs with a wattage of 21W. These bulbs are designed for use in headlights and foglights, providing a bright light output of 280lm. Manufactured by Philips, the SilverVision technology ensures high performance and durability, making them suitable for both front and rear placement on vehicles. With an ECE certification and a voltage of 12V, these PY21W bulbs offer reliable and efficient lighting for your car or truck.