I too have3 a few of them I won 4 x 70 watt versions for only $1 USD for all 4 I also have 35w, 50w, 100w, 150w ED17, plus a 1000w ET25 HPS Lamps, 75w, ED17, 80w, ED17 and A23, 100, in ED17 and A23, 175 and 400w in ED28 Mercury, 160w SBMV's, 400w ED37 Red Deluxe, (which looks more like Magenta/Pink) and 1000w BT37, 70w, 100w, and 150w R40 Metal Halide Lamps, all are Plusrite and they all are happy to be lit on UK Ballasts, however I am unable to operate my 50,70,100,150w and 1000w HPS, and 1000w Metal Halide lamps as they are Different Voltage, Current to the UK Ballasts, but as I got them so cheap I don't mind as they make fine pieces, for my Collection
I think these Lamps are Great, they are cheap as Chips and so far I have had no Problems with them.
All the Best
Colin
Yes they are cheap,I bought a few and have one in use nightly dusk to dawn service and is working great.
All the Best
Colin