Plural noun with OR?

[galadrias]

Hello everyone, I'm new to this forum and just starting to find my way around.

My apologies if this question has been covered elsewhere, but I haven't found it yet.

Which is correct:

Do not look into the red or green laser beam.

OR

Do not look into the red or green laser beams.

[Tdol]

Hello everyone, I'm new to this forum and just starting to find my way around.

My apologies if this question has been covered elsewhere, but I haven't found it yet.

Which is correct:

Do not look into the red or green laser beam.

OR

Do not look into the red or green laser beams.

To make it clear that they are different beams, I'd say 'the red or the green laser beams'.