Hello MLAV, first, have you found the adjust view tool ? That is, if the 350 has the facility - my son has pinched mine, so can't remember.
Hit "POTIONS" , then "ADJUST VIEW", then "Custom".
This brings you the font dark/light Custom screen. Play around with this to find what suits your eyes best ! I have found 97 (+ or top line) and -91 suit me, and getting this right for you does improve legibility in low light levels.
I don't think there is a specific trick to brighten the screen.
Second, yes, you will need a light, as the eink page is not backlit.
Sony do a cover with light which is excellent, but they are very hard to come by now, and £40 'ish quid, not cheap, try Amazon, ebay, etc.. Google it as well, see what you come up with......
I reckon these are the perfect answer, as well as good protection levels.
Otherwise, you are are looking at a proprietry light and cover .
For most of these you will need a cover for the 350, not a bad idea anyway, and there are quite a few (unlit) ones out there that are reasonable - or make/adapt your own.
Then you just need a clip-on type reading of which there are quite a few that will do. Sony do (did?) which I bought as a Christmas pressie last year, for just £9-99, various colouras - I got it at Waterstones - which is still going fine.
I have seen a magnetic strip stuck on the back of the 350, and a magnetic light used - but don't if that's a good idea, re: affecting Reader contents - but apparently they had no problems.
Or, if all else fails, it's under the bedsheets with a torch !!
PS I've given up ever getting mine back, so have bought a "clearance" one from Best Buy, so'll be able to re-acqaint meself next week !
