The bulb simulates natural moonlight to allow viewing without disturbing the animal's  day and night cycle.
The light emit bluish due to the use of dark night cycle.
The light emit bluish due to the use of dark blue glass.
The heat emit bluish due to the use of dark blue glass.
The heat generated by the bulb is enough for tropical animal at night.

R63 50W

R80 60W

R80 75W

R80 100W

R95 150W