It is a red LED and is much brighter than the white LED of the same power. This is because LEDs are single wavelength light sources. The red LED is a single wavelength of red light. White light has a spectrum of light so to recreate this white LEDs are actually a UV LED that illuminates a phospor that reradiates in a spectrum of light that appears white. Because UV LEDs are not a efficient as red and the phosphor is not 100% efficient, white LEDs are not as efficient as red. LEDs are much more efficient than any other currently available for single color lights. However the loss of efficiency in creating white light from a single color means that light sources like HID are as or more efficient.
Craig