the kind meant for office and school ceilings that fit in a ceiling grid(4, t8 tubes), i was thinking of using 4, 8 inch jack chains and securing it with s hooks and eye hooks. is this alright or will i have to find another way? I'm using #10 eye hooks and 1 s hooks.
Yes, you can suspend them with jack chain and eye hooks. I installed literally thousands of those lights (we called them troffers when I was a commercial electrician. In fact, in most cases even if we were dropping them in the grid for main support we also had to suspend two or four ceiling tie wires or jack chain supports to each fixture for earthquake security.