Red Lights for Snakes?

[McMonty]

I read somewhere that snakes can't see red light, which is why, I believe, you can buy the infrared heat lamps. (it provides heat without disturbing the illusion of darkness to the reptile). I want to buy a globe that will allow me to watch the goings on in the terrarium without emitting heat as the nights are fairly warm here already. Will a normal red light bulb work. Or am I completely misinformed? Also I found globes that provide uvb light but what kind of globe provides uva? Of all the pet shops I have been to, the staff are even less knowledgable than me (that's scary). I guess reptiles are more common as pets in Canada and the U.S. Here in Australia its all cats and dogs.

Please somebody help me.....................