http://www.bltdirect.co.uk/cat547_1.htm

the above ignitor,can be used for both mh and hps.
now zandor help me here if you can....i have a hps ignitor and ballast.if i get this above ignitor,will it work with my hps ballast?in so i could use both mh and hps?
or a convertable mh bulb will cost me 38 pounds!what you guys think?