Answer: Binary Secret #340

The secret message is:

Good job

Row by row

Row	Bulbs	Add the ‘on’ numbers	Character
1	01000111	64 + 4 + 2 + 1 = 71	G
2	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
3	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
4	01100100	64 + 32 + 4 = 100	d
5	00100000	32 = 32	a space
6	01101010	64 + 32 + 8 + 2 = 106	j
7	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
8	01100010	64 + 32 + 2 = 98	b

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 = [
    "01000111",
    "01101111",
    "01101111",
    "01100100",
    "00100000",
    "01101010",
    "01101111",
    "01100010",
]
message = ""
for code in secret:
    number = int(code, 2)
    message = message + chr(number)
print(message)

When you run it, it prints:

Good job