| "pfjw@aol.com" <peterwieck33@gmail.com>: Sep 09 12:04PM -0700 OK. This is one of those times when it is clearly demonstrated that Common Sense isn't. a) A HID fixture designed for a 125-watt lamp will not support a 175 watt lamp, no matter whether the socket is changed or not. b) About 30% (when the lamp is new) goes off as heat. As the lamp ages, that goes to 75%. c) These beasts get HOT. And, even assuming that a 175 watt lamp would light, and operate properly, that additional heat would be fatal to the fixture in short order. That has to do with the physical design of the fixture. d) Changing an HID Ballast is neither trivial nor cheap. And to do so in the world of reliable LED replacements is simply foolish. e) There is a reason that licensed electricians are required by code to modify fixtures from HID to LED (bypass the ballast). While not rocket-science, it is, also, not trivial. So: The only valid approach for the OP would be to purchase the correct LED fixture in the first place. That the question was asked in the form it was asked makes it clear that the OP hasn't the first clue on what is involved. From some of the answers here, it is also clear that many of the posters are no better. Consider that at no time did the OP seem to consider the purchase of the correct lamp... Peter Wieck Melrose Park, PA |
| Larz <dispcal667@nospam.net>: Sep 09 03:59PM -0400 On 9/9/19 12:38 PM, Bennett wrote: >> capacitor. Thank you. > Once the ballast is changed, any chance the 175W bulb will overheat in a > fixture ?designed? for 125W? I decided NOT to modify the 125W MV lamp yard light in any way, just swap out the frosted light for a clear one of the same wattage and medium base. The ballast on the way is for either 175W MV or Metal Halide. The bulb will be housed in a ceramic Mogul base and away from anywhere where it might overheat or cause melting. As I said prior, I plan on operating these intermittently to help bring in insects and moths during the night. I understand the concern about the 175W heat, so I have made allowances for that with the correct base and the fact that it will be operating open air from a tripod. We're talking maybe 5-7 hours maybe half a dozen nights a month. I'll be seated close by the whole time. |
| peter wieck <peterwieck9@gmail.com>: Sep 09 05:53PM -0700 Not very bright. Pun intended. Peter Wieck Melrose Park, PA |
| Larz <dispcal667@nospam.net>: Sep 10 10:42AM -0400 On 9/9/19 8:53 PM, peter wieck wrote: > Pun intended. > Peter Wieck > Melrose Park, PA Whatever floats your boat... I stopped arguing on Usenet about 20 years ago, or even making sarcastic commentary. Just like arguing politics, it accomplishes nothing and only inflated my blood pressure (come on, people really think they're going to change someone's political views by arguing with them all the time... not). Most of the very same individuals making the comments wouldn't hold a prayer if meeting face to face. 'Nuff said and I won't reply further unless I see helpful or useful commentary. |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Sep 10 07:50AM -0700 On Tuesday, September 10, 2019 at 10:42:05 AM UTC-4, Larz wrote: > individuals making the comments wouldn't hold a prayer if meeting face > to face. 'Nuff said and I won't reply further unless I see helpful or > useful commentary. 180 VAC at 125 watts is no laughing matter. Common sense saves lives. Peter Wieck Melrose Park, PA |
| Larz <dispcal667@nospam.net>: Sep 10 11:10AM -0400 > 180 VAC at 125 watts is no laughing matter. Common sense saves lives. > Peter Wieck > Melrose Park, PA Why didn't you just say that instead of the sarcasm, then? See, I would have responded in kind. |
| John-Del <ohger1s@gmail.com>: Sep 09 09:43AM -0700 On Monday, September 9, 2019 at 11:25:19 AM UTC-4, John Robertson wrote: > Mouser has 47 of these DLP650LEFYL DMD chips left in stock @ $153USD. > Damn. Should have bought from them! > John :-#(# One of my buddies had a contract with a city near us to maintain their projectors, and they changed TONs of those. If you're planning to keep the projector for a few more years, I suggest buying one of the remaining new DMD chips. |
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