hi, i hv some problem for my project

how to do it if u want condition like this
( temperature from 29C to 35C, the bulb will ON that means the bulb will ON if temperature <29C until temperature = 35C
but when temperature >35C the bulb will OFF until the temperature reach to or below 29C and that condition will repeat)

sorry for my word, i hope someone can give a some advise or hint to help me
thanks