1K HPS to 250 MH. What to expect?

[Here To Learn]

I have been forced to downgrade to a 250 Watt MH light from a 1K HPS light three weeks into flower with a bunch of Kush plants; Bubba, Purple and Hindu. Besides a reduction in finished weight what should I expect? Fluffy buds? long inter nodes? Anyone have any experience with this?

Thanks.