The Exo Terra Reptile Dome has an extra long aluminum reflector dome that extends beyond the face of most bulbs. The Reptile Dome Fixture gives you the versatility of placing heat and/or light sources on your terrarium where needed. The aluminum reflector increases the light, UVA and UVB output significantly! Its heat resistant ceramic socket can accommodate either compact fluorescent bulbs or incandescent bulbs (PT2348: max. 75W / PT2349: max. 160W). The light can be easily turned on and off by the On/Off switch, mounted on the extra long power cord (180 cm – 6 ft). Combine multiple fixtures with specific light bulbs to create the ideal lighting system. Visit the lighting section on www.exo-terra.com for information on the lighting requirements for your animal.