Older 400w metal halide bulbalexd12006/16/20 at 21:11nicksfans: That's 2003 or later based on the Hg label. No...	Older 400w metal halide bulbalexd12006/16/20 at 19:19wide-lite 1000: On the base you can find the date code, it will st...	Older 400w metal halide bulbalexd12006/16/20 at 19:08WestinghouseCeramalux: To me, an older bulb would be at least a BT37.	Older 400w metal halide bulbalexd12006/16/20 at 08:45rjluna2: Looks like well used bulb to me	Sylvania 250w metal halide bt37alexd12009/08/19 at 22:26HomeBrewLamps: I have one of these but in 400 watts. Nice save...
Sylvania 250w metal halide bt37alexd12009/08/19 at 22:23WestinghouseCeramalux: It's a BT28 lamp.	Interesting brand metal halide bulbalexd12002/20/19 at 11:09rjluna2: A cram bulb	Sylvania metalarc frosted 400w bulbalexd12012/16/18 at 14:06alexd120: Date is 10-17-2011	Sylvania metalarc frosted 400w bulbalexd12012/16/18 at 11:35streetlight98: Looking at the etch, this lamp is from the early 2...	Sylvania metalarc frosted 400w bulbalexd12012/15/18 at 12:56fluorescent lover 40: BU means "Base Up" only.
How rare is this bulbalexd12012/15/18 at 12:32alexd120: Thanks it a 400w bu m59 bulb. Will upload a pic of...	How rare is this bulbalexd12012/14/18 at 16:59streetlight98: If it's a standard 400W (M59) lamp these were ...	How rare is this bulbalexd12012/13/18 at 08:34alexd120: Thanks	How rare is this bulbalexd12012/11/18 at 13:26paintballer22: Not rare but uncommon. I have a few of these in us...	Very worn out mh bulbalexd12009/19/18 at 16:13Mandolin Girl: That would not be very good.!!
Very worn out mh bulbalexd12009/19/18 at 11:57alexd120: Yes it does. But i don't use it that much be...	Very worn out mh bulbalexd12009/19/18 at 11:46tuopeek: Looks like it also has a bit of a bulge in the arc...	100w metal Halide alexd12009/19/18 at 09:33alexd120: Phillips makes bulbs for GE now and they are very ...	70watt mh bulbalexd12009/17/18 at 14:51wishus: You need the 50W now... it is so tiny inside!	100w metal Halide alexd12009/17/18 at 14:50wishus: I've always preferred Sylvania metal halide la...
70watt mh bulbalexd12009/17/18 at 11:18dor123: Operating 70W MH lamp on a 100W MH ballast, overdr...	70watt mh bulbalexd12009/15/18 at 19:43alexd120: Are they in the Notorious for exploding?	70watt mh bulbalexd12009/15/18 at 19:41alexd120: I probably shouldn't of done this because I ra...	70watt mh bulbalexd12009/15/18 at 19:41alexd120: I probably shouldn't of done this because I ra...	70watt mh bulbalexd12009/15/18 at 18:05sol: These run notoriously pink. I believe they are oth...
Save these from going to the trashalexd12008/05/18 at 17:02streetlight98: Nice score! They may be "just MH lamps" ...	All my nos metal halide bulbalexd12004/18/18 at 07:30alexd120: The metalarc is a 360watt bulb.	All my nos metal halide bulbalexd12004/17/18 at 21:12Alights: Those GE 360w lamps last a long time! They'll ...	Sylvania alexd12004/16/18 at 14:57streetlight98: Probably not long. Underdriving HIDs is bad for th...	Sylvania alexd12004/16/18 at 14:23alexd120: How long will it go on a M59 ballast .

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