في لمبة جديدة بالغرفة، بس لسه ما بتشتغل.

Here, في means there is / there are, not in.

So:

• في لمبة جديدة = There is a new light bulb
• not In a new light bulb

This is very common in Levantine. Sentence-initial في is often used to introduce something that exists or is present.

Arabic does not have an indefinite article like English a/an.

So لمبة جديدة by itself means a new light bulb. It is indefinite because it does not have الـ.

Compare:

• لمبة جديدة = a new light bulb
• اللمبة الجديدة = the new light bulb

In Arabic, adjectives usually come after the noun they describe.

So:

• لمبة جديدة = literally light bulb new

This is the normal word order in both Levantine and Standard Arabic.

Also, the adjective has to match the noun in:

• gender
• number
• definiteness

So because لمبة is feminine singular and indefinite, the adjective is also feminine singular and indefinite: جديدة.

Because لمبة is a feminine noun.

That affects both:

• the adjective: جديدة
• the verb: بتشتغل

So the sentence treats the bulb as feminine singular.

A useful comparison:

• لمبة جديدة... ما بتشتغل = feminine
• جهاز جديد... ما بيشتغل = masculine

The ـة at the end of لمبة and جديدة is a common sign of feminine nouns/adjectives.

بالغرفة means in the room.

It is made of:

• بـ = in / at
• الغرفة = the room

So:

• بـ + الغرفة → بالغرفة

In Levantine, prepositions are often attached directly to the following word.

You could think of it as:

• بالغرفة = in-the-room

Also, using بـ for location is very common in Levantine. You may also hear في الغرفة, but بالغرفة is completely natural.

بس can mean different things depending on context.

Common meanings include:

• but
• only / just

In this sentence, it means but:

• في لمبة جديدة بالغرفة، بس...
• There is a new bulb in the room, but...

The contrast in the sentence makes the meaning clear.

لسه usually means still or yet.

With a negative verb, it often gives the meaning:

• still not
• not yet

So:

• لسه ما بتشتغل

can be understood as:

• it still doesn’t work
• it doesn’t work yet

Both are natural ways to understand it.

In Levantine, ما is a very common way to negate a present-tense verb.

So:

• بتشتغل = it works / it is working
• ما بتشتغل = it doesn’t work / it isn’t working

Unlike Egyptian Arabic, most Levantine varieties do not need a final -ش here.

So Levantine says:

• ما بتشتغل

not:

• ما بتشتغلش

Because Arabic often drops subject pronouns when the verb already makes the subject clear.

بتشتغل already shows third person feminine singular, so the listener can understand that it refers back to لمبة.

So you normally say:

• ما بتشتغل

not:

• هي ما بتشتغل

You can add هي for emphasis or contrast, but it is not necessary.

بتشتغل is the regular present form, and with machines, devices, lights, and similar things, it is very natural for meaning works / functions.

So:

• ما بتشتغل = it doesn’t work / it’s not working

If you say ما عم تشتغل, that puts more focus on what is happening right now, as an ongoing situation.

Very roughly:

• ما بتشتغل = it doesn’t work / it isn’t working
• ما عم تشتغل = it’s not working right now

In this sentence, ما بتشتغل is perfectly natural.

A rough pronunciation is:

fī lamba jdīde bil-ghurfe, bas lissa ma btishteghil

A few helpful notes:

• جديدة is often pronounced something like jdīde
• الغرفة in Levantine is often il-ghurfe / l-ghurfe
• بتشتغل is roughly btish-te-ghil

Exact pronunciation varies by region, but that approximation is a good start.