The Zoo Med PowerSun UV is a self-ballasted mercury vapor lamp which emits UVA, UVB and heat all in one lamp.
The bulbs fit into standard ceramic socket, no ballast are needed. Both 100 and 160 Watt projects UVB up to several feet from the lamps surface and is ideal for large vivarium's. All these bulbs have a full one year warranty!
Thursday 08 March 2018
It looks to be warming up next week (12th-16th March).