XtraSun Reflector to Galaxy Ballast? Cord Questions

So I went down to the local hydroponic shop today & I purchased a ballast. I tried to hook up my reflector that I recently bought two weeks ago. Just my luck, the two cords do not hook up to each other. Keep in mind that this is the first time I ever dealt with anything dealing with setting up a grow room. I am not familiar with these types of cords, perhaps someone can explain to me what I might need too get this to connect properly? Here is my reflector & ballast, I also took pictures of the male & female cord. If you can help me get this connected properly I would be greatly appreciated, I'll get rep points for anyone that can help me.

Air Coolable Xtrasun 6" Reflector
SKU: XT6AC

I also uploaded pictures below of the male cord.

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GALAXY 600 WATT ELECTRONIC BALLAST
Product ID: 902485

• Extruded aluminum housing is engineered to dissipate heat and keep the components cool.
• Smart Volt™ feature allows ballast to run on 120, 208 or 240 volt power. Detachable power cord allows easy change over. Comes standard with 120 volt cord, purchase 240 volt cord separately (Part #903082).
• Resetable circuit breaker for short circuit protection.
• Lamp cord receptacle compatible with all Sun System® reflectors and sockets.
• Operates both HPS & MH lamps.
• Completely silent and lightweight.
• Extremely efficient – 99% power factor.
• FCC compliant.
• Generator ready.

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http://www.horticulturesource.com/product_info .php?products_id=6179

Thanks for the quick reply, I honestly had no idea what to even search for. One more question though, at the hydroponic shop they also had two different kinds of 600 watt digital ballasts. Lumatek 600W 120 HPS/MH E-Ballast & GALAXY 600 WATT ELECTRONIC BALLAST, which one is the better of the two? The lumatek was like 10$ more & I noticed it has the correct kind of plug on it, the reason why I am asking is I may try to return the Galaxy ballast and swap it for the Lumatek. If i would have knew I need to buy a 10$ cord for it to work properly I would have just went ahead and bought the Lumatek.

Lumatek 600W 120 HPS/MH E-Ballast

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SKU: LK6120
Weight: 12.2 lbs.
Package Dimensions: 14.8L x 8.9W x 4.0H
Suggested Retail: $249.95

The market's most popular and best E-ballast has been improved. The Lumatek E-ballast is a performance leader. Powers both metal halide and high-pressure sodium lamps (except the 750W model, which only powers HPS lamps). Available in 250, 400, 600, Dual 600, 750, and 1000W as well as generator friendly 400 & 600W.

• Up to 20% MORE LUMENS; faster growth, bigger harvests

• Unique graduated fin design for more efficient cooling

• Completely pre-wired with popular BAREF lamp cord

• 3 years full + 2 years warranty

• Internal Resin coating protects components for long life

• External breaker system protects against power surges

• Completely silent

• 5.5 Amps

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I added a +Rep point, thanks for helping me out!

I have a lumatek. My local hydro shop has galaxy too. I really see no difference, I'd be happy with either brand.

Do you use the dimmer control much, the ballast I have doesn't really have any features on it other then the reset button.