Note that D:Meal effectively already exists!
You just need the Minor Virtue Performance Magic (TMRE p.29), using the Craft ability Cooking. You can then cast your magic with D:Performance (equivalent to D:Conc in level) and it lasts for as long as your delighted guests keep munching and you keep serving them food.
A 40 watt bulb produces approximately 30 candelas (SI unit). A common wax candle emits light with a luminous intensity of roughly one candela, so 30 candles.
In particular, the Base Guideline is probably 3: roughly torchlight, certainly more than candlelight (Base 2) and significantly less than sunlight on a cloudy day (Base 4). While the Range is Touch, and the Duration is Sun, the Target is Individual, as it's an Individual light. So the final Level is 10 (Base 3, +1 Touch, +2 Sun).
Essentially Lamp without Flame (ArM5 p.140) with longer Duration and weaker light intensity.
They would obviously not synchronise with other clocks. Clocks are simulations, and magi depend on the true, celestial time to know when their magic expires. So if they were to have clocks, they would make clocks to synchronise with the sun and the moon.
That said, this is either MuIm 3 (Base 1, change one sensation of an object, +2 Sun) or ...
I'd say MuCo 3, with a new Base 1 guideline "make a small aesthetic change to someone".
With MuCo 4, you can give someone the ability to change his teeth's coloration at will (Base 2, change someone to give him a minor ability).
New flaw-bibliophile
Basically you like to read to a fault
Mind you the flaw described is just a guess on my part, it could be considered a virtue instead. I’m just not sure myself.
Even then I’m not sure if it’s a minor or a major one.
When given a choice, the character prefers to read.
At the start of a season, if the magi has access to a book they can gain XP with, they must make a willpower check if they choose not to read the book. Each season of the last 4 where they have read a book gives a +3 to the roll, each season without reading a book gives a -3 to this roll. This roll also needs to be made if they choose to go to adventure, while reading. If the roll fails, they do not adventure.The SG can choose to make this roll unnecessary if the adventure is deeply important to the Magi.
The character will also spend significant time and effort trying to improve their library and book access.
You say "character," but then go on to describe precisely how so many players already behave.
Here's my version.
Bibliophile.
The character receives 2 extra xp when reading.
When they encounter a book that would give them Art xp if read, they must make a Not Homicidal personality roll with a penalty equal to the possible xp gain, or begin slaughtering everyone in their way until they've obtained the book.
Now that's a flaw.
Best paired with Judged Unfairly.