Blue Spotted Day & Night 60 Watt Combo Pack For Terrariums & Viewing And Heating Of Your Pet Reptiles and Amphibians Blue Spotted DayView Wild-Blue & NightView Wild-Red 60 watt combo pack for terrariums & viewing and heating of your pet reptiles and amphibians Contains one Dayview Wild-Blue Blub and one NightView Wild-Red Bulb DayView Wild-Blue Bulb provides daytime heating and viewing. The blue glass gives superior heat transfer The NightView Wild-Red Blub provides nighttime viewing and heating, facilitates natural behavior, Both are economical 60 watt bulbs with universal E26 lamp base. Other bulbs and items to consider are: Blue Spotted Mercury Vapor Lamp, UVB 10.0 Compact Fluorescent, ceramic heat emitter, infrared bulb, clamp lamp, clamp lamp stand, and deep dome fixture.