Help with Heat

I Have a 150w infared light that keeps the hot side at about 91-92 degres on the hot side. But my cool side is like 75-76 and I dont want here to get a RI and i dont know why its not like 80-82 on the cool side, plz help me out with this problem.

How big is your enclosure?

My incloser is a 40 gal glass with aspen 2 hides 1 large wate dish 2 branches.

i use a 150w heat bulb in my 36"x24"x20" custom made wooden enclosure and it heats the whole thing up to perfect temps.
i dont know the dimensions of your 40 gal but if your using a 150w bulb, it should heat it.
are you sure its 150w??

yea is 150w and the dem is 36x17x15

how long has the heat lamp been on?
what are you using to take the temperature with?

about 2days from now and i use a dig prob

are you using a screen top and is the lamp directly on it?
i dont know what else it could be unless in C.A. you keep your a/c really high.

i live in eureka and its about 58 outside in the morings and my room is like 63 deg(I hate when you say u live in ca and ppl think u live in La) and the lap is like a inch from the screen,

58 degress? damn you must live closer to canada then.
anyways all i can say is maybe place the lamp on the screen.
maybe after a few days the heat will accumulate and the tank will stay warmer.