Zoo Med Reptile Day Bulb in Blue is perfect for use in horizontal facing light hoods (like Zoo Med`s Economy or Combination Reptile Hoods. True blue glass (not painted or coated) for better heat transfer. Full spectrum daylight bulb for heating reptile or amphibian terrariums.    Zoo Med Reptile Day Bulb provides UVA, the wavelength that promotes a psychological well being and stimulates normal feeding behaviors in reptiles. Can be used with Zoo Med`s ReptiSun 5.0 fluorescent lamp for proper UVB exposure. European quality for long burn life.    Available in 15, 25, 40, 60, 100 and 150 Watt sizes.