Land_Fish

PA also has the Ice Cap 250 watt ballast on sale.
Price: $114.95

http://www.premiumaquatics.com/Merch...ory_Code=Sales

Unwired Needs some minor wiring and powercord

This ballast will power any metal halide 250-watt bulb. It does not over-drive the bulb, so output will be at the bulb manufacturer's specifications. By using a constantly changing, very high frequency, the ballast will light any bulb without flicker. Longer bulb life and other features makes this the best ballast for all metal halide applications. Does not come with Molex connector.

IceCap uses its unique, patented operating system, which allows you to save energy without compromising light output. By applying lower voltage across the lamp, energy consumption is reduced and lamp life is expected to be increased.

Advantages:

Energy Savings of over 10% from High Efficiency
Longer Lamp Life due to constant output
Longer Ballast life due to low heat
Compact Size to fit most fixtures
High Frequency Operation is flicker & noise free
Savings on air conditioning costs
Quality:

Built-in circuit protection
High Voltage, High Current Protection
High Temperature Shut-Down
Improper Wiring Protection
Automatic Bulb Failure Shut-Down
Automatic Resetting
Starts in Cold Temperature
Starts in Low Voltage Environments
Allows up to 30 feet between Lamp and Ballast