Now that spring/summer has arrived, is it a good idea to extend the days of the geckos by keeping the heat lamp on longer?
Matching the light cycle of their home range is best in my opinion. A cool flourescent bulb on a timer can do your day/night cycle without making much if any impact on temperature. A CHE or red bulb can be used in conjunction with an on/off type thermostat to maintain proper temperatures, one that has a night drop setting would be best.
Light and temperature are two different environmental factors that shoud be independant of each other. In the wild temperatures do not always drop as much as one might expect directly after sunset. Many other things conspire to hold an areas temperature through the night such as cloud cover.
I was on a 12 hour day/night timmer, should I go with a 14/10 setup?
Sunrise and Sunset for Vietnam – Hanoi – coming days
It seems 13/11 might be better right now. Exactly how close you keep the light cycle will depend on your equipment and personal preference, anything between 5 and 15 minute adjustments seem to work fine, a jump of 2 hours is a bit much in my opinion.
Does it make a difference?
Yes it does, if you are looking for natural behavior it helps quite a bit. As stated by Riverside Reptiles, if your gecko is a pet it might not be what you want to do.
Maurice Pudlo