Answer: Binary Secret #322

The secret message is:

Meow!

Row by row

Row	Bulbs	Add the ‘on’ numbers	Character
1	01001101	64 + 8 + 4 + 1 = 77	M
2	01100101	64 + 32 + 4 + 1 = 101	e
3	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
4	01110111	64 + 32 + 16 + 4 + 2 + 1 = 119	w
5	00100001	32 + 1 = 33	!

Crack it with Python

Python can do the adding for you. int(code, 2) reads a string of 1s and 0s as a binary number. Then chr() turns the number into its character.

secret = [
    "01001101",
    "01100101",
    "01101111",
    "01110111",
    "00100001",
]
message = ""
for code in secret:
    number = int(code, 2)
    message = message + chr(number)
print(message)

When you run it, it prints:

Meow!