Great price on 400 watt switchable ballast

Ok just wanna share with everyone a great price on a 400 watt switchable ballast.

http://cgi.ebay.com/400-Watt-Digital-Electronic-Ballast-120V-240V-MH-HPS_W0QQitemZ130306513784QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item1e56df9b78&_trksid=p4634.c0.m14.l1262&_trkparms=|301%3A1|293%3A1|294%3A30

Here is the manual for this ballast http://www.welthink.com/PDF/WEX120-400B.pdf

$129.99 free shipping

Doesn't anyone want to comment

I just bought one as a backup

I think it is a great price, compared to others