http://www.ballastshop.com/qtp1x70mh-unv-f.html ; http://www.ballastshop.com/media/import/pdf/Quicktronic_Professional_MH_QTP.pdf ; http://ecom.sylvania.com/sylvaniab2b/b2b/start.do?browsername=mozilla%2F5.0%2520%2528macintosh%253B%2520intel%2520mac%2520os%2520x%252010_8_2%2529%2520applewebkit%2F537.36%2520%2528khtml%252C%2520like%2520gecko%2529%2520chrome%2F27.0.1453.110%2520safari%2F537.36&browsermajor=5&browserminor=5