I just got the replacement bulb for the one that burnt out and they sent me a "1000W Metal Halide Conversion Lamp", which specifies "S52 HPS Ballast Systems". The bulb they originally sent was just a 1000w MH, no conversion and it specifies a "Type M47 Ballast".

I have a Digital Greenhouse 1000W MH and HPS digital ballast. Can I use this conversion bulb in it safely?

I would call them, sweetie.

No idea personally about this.

Let us know what they said.

Peace

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Since the digi ballast you have is listed as being capable of burning both hps and MH I believe you are good to go. However, call em as jangel suggests if you are 'noided abouit firing it up.

I would let it wail. If it blows...they get to send you yet ANOTHER lamp.

shine brightly

ww

go flight.

You are going to be able to burn this bulb safely. Go ahead and switch the output to HPS if so required, but I believe the model you are referring to might be of an autoswitch type. It's interesting that you were burning an M47 Lamp in there, and I wonder if It didn't seem to deteriorate in luminescence rather more quickly than you'd expected. M47 is a designation indicating a probe start type of lamp, as opposed to pulse start, which your ballast is surely capable of running. Probe starts have a much less stable lumen maintenance over their life and a significantly longer re-strike time than their more advanced pulse start sisters. Your new conversion lamp will probably bring a more effective lighting situation for a longer duration, and that's worth smiling about.

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"No man is so foolish but he may sometimes give another good counsel, and no man so wise that he may not easily err if he takes no other counsel than his own. He that is taught only by himself has a fool for a master."
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Lol well yeah, kind of. It burnt out as soon as I plugged it in, which is why they sent me a replacement. So you could definitely say it deteriorated in luminescence rather abruptly

Which, of course, begs the question: Did they send me the wrong bulb the first time?

The new one is in there and doing fine. Thanks!

Yeah, it appears so. It seemed fishy to me that you'd have a probe start bulb on such a new electronic ballast designed with it's own internal ignition. All HID lamps, and fluorescent lamps, all non-linear loads, as in all non-incandescents, require an initial increased voltage to provide the starting arc or reaction in the lamp. Over the years this has been accomplished in a multitude of ways. The probe start MH was designed with it's own interior starting circuit. It requires a lower starting voltage than any of the pulse starts, or hps's. It's main problem was the proximity to the heat of the lamp, which compounded the natural losses encountered with starts and stops, which shed important elemental particles every time. And it is compounded when an initial start is delayed, requiring multiple tries for the initial start. Not really important info, but true none the less. Pulse starts are far superior in their design because they counter much of these problems. The problem you experienced was a greatly increased voltage from the starting circuit in your ballast that did not produce the desired requirements for the starting circuit in your lamp, and it had the result you experienced... instant death. So the short answer is that you did receive an incompatible lamp for your ballast at the outset, as described.

__________________
"A word to the wise is infuriating."
"No man is so foolish but he may sometimes give another good counsel, and no man so wise that he may not easily err if he takes no other counsel than his own. He that is taught only by himself has a fool for a master."
"In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity."
"Buy the ticket, take the ride."
- The Immortal Hunter S. Thompson

For future reference, If you get a replacement lamp that is not a conversion, make sure that you specify the pulse start nature. Typical lamp codes will start with the letters PSMH/ or PSM/ depending on the manufacturer. The suppliers ought to know this, but not everyone is a lighting expert (or even competent, just trying to euphemise a bit here).

__________________
"A word to the wise is infuriating."
"No man is so foolish but he may sometimes give another good counsel, and no man so wise that he may not easily err if he takes no other counsel than his own. He that is taught only by himself has a fool for a master."
"In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity."
"Buy the ticket, take the ride."
- The Immortal Hunter S. Thompson

More often than not, the letters /PS/ will be in their own backslash column, further into the lamp code. Ignore the above, those are usually abbr. in descriptions.:animb ong:

__________________
"A word to the wise is infuriating."
"No man is so foolish but he may sometimes give another good counsel, and no man so wise that he may not easily err if he takes no other counsel than his own. He that is taught only by himself has a fool for a master."
"In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity."
"Buy the ticket, take the ride."
- The Immortal Hunter S. Thompson