yes but you'll be unable to Regenerate Force points unless, you have equipment with +to regan and the regan trait and even then its super slow.
<{POST_SNAPBACK}>
The first time I entered the tomb it took me weeks to get up levels and regenerate force points. The only way to generate force points as a lightsider is to wear a Jedi robe. Though I have since found a much much better way.
When you level up make sure that you have force wave and master force drain before you enter the tomb. Force wave pushes all the hississ away and force drain replenishes your force power. Then you can do multiple searches of the Jedi's body and get dozens of hississ into the room. Then force wave and drain force to recover force points. It is best to have a lot of hississ in the room to gain force from as not much comes from each one.
Even as a lightsider learn drain life and force storm as these can recover health and do the most damage to as many hississ at a time. As you are using froce drain you do not have to worry about the lightside penalties so much. The usual attack pattern for me is to use barrier to protect myself then force wave, force storm, wave, and alternate wave and storm. Use drain life and drain force to recover health and force points as necessary.
Done well you can get up a level every few minutes. I got to level 50 in a couple of hours. I stop levelling up at level 48 but still collect experience till I have 1.4 Million exp, then leave the tomb. One thing is that even if you then enter the Academy at Korriban you have a struggle to beat Sion even at level 48
