Answer: Binary Secret #334

The secret message is:

Loops rock

Row by row

Row	Bulbs	Add the ‘on’ numbers	Character
1	01001100	64 + 8 + 4 = 76	L
2	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
3	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
4	01110000	64 + 32 + 16 = 112	p
5	01110011	64 + 32 + 16 + 2 + 1 = 115	s
6	00100000	32 = 32	a space
7	01110010	64 + 32 + 16 + 2 = 114	r
8	01101111	64 + 32 + 8 + 4 + 2 + 1 = 111	o
9	01100011	64 + 32 + 2 + 1 = 99	c
10	01101011	64 + 32 + 8 + 2 + 1 = 107	k

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 = [
    "01001100",
    "01101111",
    "01101111",
    "01110000",
    "01110011",
    "00100000",
    "01110010",
    "01101111",
    "01100011",
    "01101011",
]
message = ""
for code in secret:
    number = int(code, 2)
    message = message + chr(number)
print(message)

When you run it, it prints:

Loops rock