The advantage of the Exo Terra Repti Glo Compact Fluorescent bulb is its size and the fact that it is self-ballasted. A regular screw fitting is sufficient to operate these bulbs. 

High UVB output
Effective up to 30 cm
Provides necessary UVB rays for optimal calcium metabolism
Stimulates appetite, activity and reproductive behaviour through UVA radiation

Exo Terra Reptile UVB 13w

£20.15Price