thanks for the advice guys, i may just go for standard pulse stat,as i am not too confident that even with adjustable sensitivity,the stat can"think round corners" ,and calculate the possible light variations within my snakeroom. still cant make my mind up whether to go for microclimate b2 600 watt or the habistat's which i am currently using on my other vivs and rub's. is it worth gives the microclimate a try?

i have heard that micoclimates if they fail switch off ALL HEAT, while habistat's allow heatt to continue if they fail? can any body advise whether this is STILL the case,as i had heard habistat were altering their stats to also switch off all heat too.