A third lighting test was undertaken earlier this week with Tander and Shane van Gisbergen taking part on and off the track, following a trial with Supercars last August and further checks in February.
Tuesday evening’s running focused on the final complex of corners and the positioning of lights to suit drivers and television requirements.
“It was good,” Tander told Supercars.com. “It was probably more a test for TV, to make sure they were getting enough light, and it became evident very quickly that TV will need more light than we will as drivers, to see where we’re going.
“There’s plenty of light from a driving perspective. I actually ran around with my helmet, with the dark visor down with the lights on to see if that could be done and it can.”
“We spent a bit of time positioning lights because the guys that position lights weren’t aware that if you set up a light tower at Turn 12 it could become an issue at Turn 3 by shining in your eye.
“Once they understood that side of things as well, it went really well. We relocated some lights, that fixed all of the dramas and it was a really good test.
“They had some reflective line paint down on the circuit track edges and that worked really well. That was a tick.
“We were driving around pretty close together and separately for TV. Even close, there was no problem with shadows or anything like that.”
Supercars Champions Tander and van Gisbergen are both regulars at the Bathurst 12 Hour, which starts before sunrise without on-circuit lighting.
Tander in the Bathurst 24 Hour in 2002 and ’03 and van Gisbergen with his international GT commitments both also have experience of racing in full-night conditions.
“Between us, we had a fair bit of experience, so we knew what we were looking for,” Tander added.
“The 12 Hour at Bathurst in pitch black in the morning is way, way more difficult than what we’ll have to experience at Eastern Creek.”
In addition to temporary lighting, measures to ensure brake markers and track limits are visible are also being assessed, while Tander notes kerbs will also require fresh paint.
“They’ve thought of quite a few things and both Shane and I suggested a couple of things they took on board, and I’m sure they’re canvassing other drivers as well,” Tander said.
“They’re doing as much due diligence as possible, that’s a good thing.”