HPS lights ????

Ok i have had a two very sucsess projects with hps lights but was thinking to try something new for project Nr.3 save more money on electricity bills!
I have this tent secret jardin awesome tent 1mX1m and 2m height was using 600w lighting i think a bit too much as 400 would be better as i dont have cool tube but got good vetilation going on with controled extractor fan !
I did hear something about lights that dosnt make any heat and are very cheap to run and you control temperature with some sort of heater wtf? Does anyone hier can point me out to cheaper and better lights?
Got super lemon haze seeds in post yesterday cant wait to put them in water them bad boys will rock!
And guys dont throw leafs out make green milk off them and cook some pancakes them bad boys will fuck you up for two days haha

I would prefer to talk about my super lemon haze as bad girls but it's up to you!! no light with heater that I know of, you must of heard that people are using heater along with LEDs to keep temps normal ... but in a small tent like yours, an average size LED should create just enough heat to keep the temps at about 25-30 without ventilations...slightly warmer than the room temperature in which your tent is. hope it helps... also a lot of people don't throw their leaves out they make hash with them... and or butter for cookies pancakes sounds good too! good luck

My tent stays between 19-22 Celsius or 66.2-71.6 Fahrenheit using LED's with no A/C.

Sorry man, Cheaper and Better dont come together. Its either cheaper or better. The cheap ones suck and the better ones are expensive. Any way you go, its not going to be cheap to cool your tent down.