Phillips SOn Agra 430 watt....?

I have some handmedown Phillips Son Agra 430 watt bulbs and ballasts that I have been using, just wondered if anyone had any experience with those.....

Info....

430 Watt Philips Son Agro HPS Bulb

This 430 Watt Philips Son Agro HPS light bulb has a 30% increased blue spectrum in addition to the red/orange spectrum needed for fruiting, flowering and budding. The Son Agro lamp offers the benefits of a Metal Halide and HPS lamp since it combines the two spectrums. The Son Agro is ideal for growing vegetables such as peppers and tomatoes. The 430 Son Agro light bulb can be used with a 400 or 430 Watt HPS ballast.

They seemed to work fine, but havent gotten much bulk on the buds on my first little success...

Arbogast