yes i am experience, lamp is NEEDED or REQUIRED, as you may know leopard geckos are nocturnal. they'll be active mostly at night, theyre temperature should be 80 between 90F. and the heat lamp should be red ,desighned for leopard geckos. they shoud have a basking area and a cool area on the other side of the tank,the basking should be at 87F - 90F the cool side should be 74F - 80F . Do not let the max temperature get above 94°F, because that is considered too hot for your leopard gecko. Goodluck
leopard geckos require heat lamp (red nocturnal heat lamp.)