If some products are unavailable feel free to contact us as we may be able to get a specific product in for you.
(Important: Some ballasts aren't compatible with some bulbs, so make sure your ballasts Watts match up with the Wattage of bulb you are trying to use. Also some ballasts are not compatible with DE (Double Ended) bulbs)
Digital Ballasts: will have a soft start feature, used to slowly release power to the lamp to extend its bulb life.
Magnetic Ballasts: will just send the full power straight away and this can reduce PAR output over time