Very good warm light! Slightly reddish. The cool is slightly bluish. Preheats slowly to give longer duration. Professional design. Observe correct polarity!
This is definitely a great little bulb. Produces good warm colors. From turn-on it takes about 2 seconds to blink on, then about 90 seconds to reach full brightness. With batteries at about 12.4V I measured 10.2W of power consumption. If your batteries are charging or are for some reason at a higher voltage youll probably see the full 11W draw.