So when we got out HID system, we payed $50 and promised to smoke the guy up once. Not a bad deal.

The hps ballast and light are being used, but the MH bulb burnt out when we first got the systems. So now I want to buy a replacement asap. The thing is I have no idea on the specs of these ballasts.

I did some research, googled M400LU/HTL and found this website which had a spec sheet about the light which said
S51

EYE Hortilux Metal Ace

So then here I am on 400 Watt Metal Halide Position Oriented Light Bulb
But the bulb ballast types are M59, so I'm assuming that they won't work.

Can anyone point me in the right direction? I see there are some on ebay, eBay - m400 htl items on eBay.com

But I really don't want to get raped on ebay by their high prices and equally disturbing shipping prices.
I see there is this Agromax bulb

High Tech Garden Supply

It says universal, does that mean it'll work in any system?
Old bulb and the back of the ballast.

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KL4D4 Reviewed by KL4D4 on . Need help figuring out which MH bulb to get! So when we got out HID system, we payed $50 and promised to smoke the guy up once. Not a bad deal. The hps ballast and light are being used, but the MH bulb burnt out when we first got the systems. So now I want to buy a replacement asap. The thing is I have no idea on the specs of these ballasts. I did some research, googled M400LU/HTL and found this website which had a spec sheet about the light which said S51 EYE Hortilux Metal Ace So then here I am on 400 Watt Metal Halide Rating: 5