Getting the temp just right need help please

[J0ker]

I have 2 digital temperature readers 1 on the cool side and one near the basking spot they read about the same temp (80-90f) I have a 75w halogen light for the basking spot and it is the strongest I can use (the only lamps I can find can take up to a 75w bulb I nearly caused a fire by putting a 100w in it ) how can I raise the temp in the basking spot and keep the temp of the cool side cool?
... and does it matter how the probs of the readers are placed?
I have them half way up on each side someone told me they should be burried in the sand does it make a difference?

other usefull info
40breader tank
healthy active baby beardie about 6.5 inches long
half a log as a basking spot at a distace of 9inchs from the light
the light stays on for 12-14h for the day
cermaic light fixture on a metal sliding top
i can't spell

please help me heat up my baby

 

[J0ker]

anyone please?

 

[jeschardies]

Yes, the basking spot should have a probe directly on it(ie.on the piece of wood). This should be a digital probe. If you have an accurite sensor, you can just place the actual device on the cool end. Otherwise the probe on the cool end just has to measure the temp on the cool end...
For such a young beardie, its not recommended to use sand as a substrate.

 

[J0ker]

The sand disvolves *spelling* melts in water

 

[Toyguy]

You basically have 2 alternatives - raise the basking spot toward the lamp to increase the temperature, or get a light fixture that supports a higher wattage bulb. If you decide to raise the basking spot, watch out that the beardie doesn't get too close to the UVB bulb and that he can't touch the bulb surfaces in any way.