Answer: Binary Secret #161

The secret message is:

FISH

Row by row

Row	Bulbs	Add the ‘on’ numbers	Character
1	01000110	64 + 4 + 2 = 70	F
2	01001001	64 + 8 + 1 = 73	I
3	01010011	64 + 16 + 2 + 1 = 83	S
4	01001000	64 + 8 = 72	H

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 = [
    "01000110",
    "01001001",
    "01010011",
    "01001000",
]
message = ""
for code in secret:
    number = int(code, 2)
    message = message + chr(number)
print(message)

When you run it, it prints:

FISH