Its starting to get cold where I live and I'm alittle worried about my crested geckos cage temps. I check on his cage temperature all the time (night, early morning, morning, afternoon, evening) and it has never went down lower than 65 at night but some mornings it stays to 65 until the afternoon. I'm just worried of using a heat lamp and the temp rising to a dangerous level. I have used a heat lamp before and sometimes it gets to 77 and i get worried of the dangerous 80 mark. I have 3 different watt bulbs so if I just used my 40 watt which increases the temp 3-4degrees would that be sufficient? The lamp is hanging above the cage about 12-14in up so the 40w doesn't affect it to much..I'm just concerned.