New to growing, questions :)

First off, hello everyone. :)

The dude has just a small light chamber but has two 75 watt flouros in it with a small fan for ventilation.. So the plants are only around 4" tall right now but I'm wondering if I can get away with crowding them in the light chamber for another 20 some days before they go outside.. Right now the light schedule is 16/8 but on some days it has been as low as 14/10..

My question is how bad will fluctuating the light like that be? The problem is on the weekends there is usually traffic in my house and I can't be switching them in and out of the light and dark chamber. Currently I use sunlight to finish up the light cycle and lead into it for the batch that sits in the dark chamber right now... so it's like

Batch 1: Midnight goes into the light chamber
Batch 2: Midnight goes into the dark chamber

Batch 1&2: 9 am get switched into the window because we're having GREAT weather right now this time of year.

Batch 1: 4pm Switched to dark chamber
Batch 2: Switched to light chamber

Midnight the cycle repeats.

This keeps them both illuminated for 16 hours and dark for 8.. will switching between false light and sunlight do anything negative to my plants as well?

So to sum it up, will flucatuation from 16/8 and 14/10 hurt them too seriously in their first 30 days of life, and also will false light and sunlight combined do anything negative to them?

I realize they're basic questions, but I'm worried about tripping flowering before I can get them outside.. can they revert back to veg when I put them outside if they do accidently hit flowering before then? :)

Well, thanks for the read, and hopefully the responses.
- Silven :thumbsup:

i would not change the light cycle leave it at 18/6 at all times in vegging stage with you pulling the cycle to 14/10 that could stress the plant out and turn it male and i would stick to the same light too cause a change in light couls also stres out the plant
the cyclces are 18/6 or 24/7 for vegging personly i do 18/6
so the plants have a lil cooling period
and the flowering cycle is 12/12
yeah it is possible to bring a flowering plant back to veg stage as long as it isent too long into the flowering cycle
you need to flower the plant to determine sex anyway but this usaully shows in the first week or 2
yeah you can crowd them into the chamber when they are that small
as they grow you will probally have to change them around or get a bigger chamber
if ya can post pictures of ya setup you will get a better more acurate responce to ya questions :)
cheers hope this helps