What should i use, 400w MH or 430w HPS? - both Phillips Son-Agro

Im in the middle of my 3rd week and i just got a phillips ceramalux Son Agro 430w HPS... im using a philips son agro 400w mh now, do you think i should use the 430 for the extra watts? hps run at higher temps, correct ( more lumens)? plus 30w's more would also cause more heat... like most my temps are already a lil difficult to keep low in a 4x4x6.5 tent. i have great air movement and my temps are at lid avg 80f, tent air temp about 75f and water temp is at 70f. but those temps are not easy for me to achieve. i know hps are a diff light spectrum and that mh are more blue which helps in root growth...i have digital ballast so no changes would be made in setup...i plan on changing to flowering in about 2 weeks maybe more, i dunno, does anyone have any opinions on this matter?
heres the link to my latest grow/setup of Tangerine Dream, Bublelicious, strawberry Haze, Pineapple Express, Himalayan Gold, & Jack 47
https://www.rollitup.org/members/combatveterans-4-cannabis-320160/albums/3-26-11-2nd-grow-tangerine-dream-bubblelicious-pineapple-express-arjans-strawberry-haze-23572/

they have grown a few inches sine last pic, 2 days ago...
heres a few pics of the tent for those who dont click on the link
:leaf: Combat Veterans For Cannabis :leaf:

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