The 12 Naturalistic Terrarium Hood includes a built-in reflector and socket for heat or UVB lamps. This hood fits all 12 wide Naturalistic Terrariums (Zoo Med items# NT-1 or NT-2). Additional Information: UVB: Use with Zoo Meds Reptisun 5.0 UVB Compact Fluorescent Lamp for UVB and UVA Daytime Heat: Use Zoo Meds Daylight Blue Reptile Bulb (up to 60 watts) 24 Hour Heat: Use Zoo Meds Nightlight Red Reptile Bulb (up to 60 watts)