PFO ballasts have a wired power cord, on/off switch and a female quick connect plug for your socket or hood. If you do not have a PFO retro, pendant or hood. You will need a PFO quick connect cord to hook up to other brand hood or socket.

Standard Metal Halide Ballast - will generally run most metal halide lamps in the proper wattage. Some of the European lamps can have problems starting up on standard ballasts.

Pulse Start Ballasts have an igniter in their starting circuit that helps fire the European lamps. This firing method may also extend the ability of the bulb to fire for longer periods of time. This does not necessarily mean that the light output of that bulb will be increased. Pulse start can turn the bulb on/off instantly, where standard can take up to 15 minutes to refire a lamp. Premium Aquatics highly recommends Pulse Start ballast over standard for bulbs 10K or higher, or non-USA lamps.

HQI ballast are needed for Double Ended bulbs and are also used to overdrive Single Ended bulbs. A good example is the Radium SE bulb runs excellent on an HQI ballast.

Electronic Ballast are smaller, light weight and less electricity output and can fire any lamp in that wattage.
 

PFO Ballast

	PFO DUAL 175WATT PULSE START BALLAST Code:PFO175DPS Price: $109.95 Rating: none Quantity in Basket: none
	PFO 175WATT PULSE START BALLAST Code:PFO175PS Price: $79.95 1 available for immediate delivery Rating: none Quantity in Basket: none
	PFO 250 watt HQI Metal Halide Ballast Code:PFO250HQI Price: $124.95 2 available for immediate delivery Rating: none Quantity in Basket: none
	PFO 70 watt HQI Metal Halide Ballast Code:PFO70HQI Price: $50.00 1 available for immediate delivery Rating: none Quantity in Basket: none