Compact lamps use HO-T5 technology to create full-spectrum+UV-B light. They have an internal flicker free ballast and can be used in any E26 or E27 high quality lamp holder. Compact lamps have had bad press over the years, sadly poor unregulated production and a lack of proper use has meant that these lamps have had limited use.At Arcadia Reptile we only make the Triple loop design which ensures as much glass as possible is facing downwards and directly over your animals basking area, more glass means more light. Compact lamps can be very useful if reflected properly and sited so that the flat of the glass is pointing downwards. This creates a usable sunbathing area for small or hatchling species.We should always make sure that our basking area is as long as the animals body, from nose to vent in lizards, the whole snake when coiled at basking or the whole carapace for Chelonia. The animal must also have equal to, or greater access to areas of graduated shade.High quality compacts can be very useful for small and young animals when kept in reduced sized enclosures as they grow.