Take a look at the Casell F16T4-835-CA a highly energy efficient T4 479mm fluorescent tube designed with a 13mm diameter and G5 Cap/Base. Using just 16 Watts of power this model provides a crisp bright White light (3500K) and has an energy efficiency proven by a 5000 Hour lifespan guaranteed by Casell.

Please Note These are unusual sized fluorescent tubes - Please double check your measurements before ordering - for length excluding pins measurement please see technical specifications below.