"My lamp is blue."

Translation: Η λάμπα μου είναι μπλε.

[DianaSpringWar]

Why is "Η λάμπα μου έχει μπλε χρώμα" not accepted?

[Lng52-._]

Can you say: "λάμπα μου είναι μπλε"?

[troll1995]

No, you need the definite article.

[Jamie36257]

In other lesson discussions we are told that "λάμπα" is the bulb and "φωτιστικό" is what in English we generally call a lamp. The mods have been very insistent upon this. So does this mean my light bulb is blue or my light fixture is blue? How do native Greek speakers interpret this sentence? Because here we are being taught "λάμπα" means "light fixture".