He aint talkin about the hood buddy, he's talkin about the mogul base. The Socket. He wants to know if a 400w will be fine in his 1000w mogul base. I think it would be alright, but I cant guarantee anything
I know exactly what he's talking about, buddy.
Virtually all hoods worth buying as "standalones" come with their own mogul/socket whatever the fuck you wanna call it.
As I've now said in two posts, these are universal to HID lighting of all types and wattages (both MH and HPS, and any wattages of those that you choose).
If there were less people speculating and guessing, this thread could've been two posts long and done with, and there wouldn't be so much bad advice being given.
See the attached link if anyone still has any questions (I took the liberty of pasting the relevant info below the link as well).
http://www.htgsupply.com/viewproduct.asp?productID=45797
5KV PULSE RATED PORCELAIN MOGUL BASED SOCKET
Built in 10" wire leads
2 High Temperature Wire Connectors Included!
! ! ! SUPER LOW PRICE at $5.50 ! ! !
Perfect for Do-It-Yourself homebuilt reflectors or to replace broken mogul sockets in your High Intensity Discharge (H.I.D.) systems.
E39 standard U.S. Mogul Base
Made for High Pressure Sodium, Metal Halide or Mercury Vapor bulbs.
Will fit any mogul based H.I.D. lamps including: 150 watt HPS, 250 watt HPS, 400 watt HPS, 600 watt HPS, 1,000 watt HPS, 175 watt MH, 250 watt MH, 400 watt MH and 1,000 watt MH or MV bulbs.