how hot is too hot?

[-torch-]

i was just wondering how hot is too hot for a basking temp for a beardie?

ive looked it up and different ppl suggest different temps in their care sheets. i just re-did the lighting so my flood light was getting better output. and its a 90w that i had to take out. cuz i saw my temp on the basking area rise to almost 130.

is that tooo hot or could i still use that flood light? right now im playing around with a 60w i found, but its no good, only bout 85.

the dimensions of my tank are, 4ft long, 1 1/2ft wide, 2ft high

the dimensions mite help, but i dunno. any responce back asap would be appreciated.