277v Selfballasted MERCURY VAPOR light BULB R57 mogul base 750w ROTANIUM vintage

277v Selfballasted lamp MERCURY VAPOR light BULB R57 mogul base E39 nos 750w ROTANIUM 750 watt 277 volt vintage 
G.W.Justice Store  Established 1888
WE DO YOUR DOLLAR JUSTICE"
please - contact us with any questions or problems whatsoever for personal Customer Service CALL TOLL FREE (ask eBay for my 800 number) 
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FREE SHIPPING 
to any U. S. Zip Code; 
including AK, HI, P. R. or U. S. V. I.  
and
FREE INSURANCE
AND
FREE UPGRADE
TO PRIORITY MAIL
WITH DELIVERY CONFIRMATION
and
Shipping Discount on qualifying Additional Items
see below under "SAVE ON SHIPPING" and/or click on "Flat Rate or Discount Shipping Cost" link below
http://stores..com/G-W-Justice-Store-established-1888/Flat-Rate-or-Discount-Shipping-Cost.html
for details on this and other  S&H  DISCOUNTS 
yes, we have more
in our eBay store
OTHER SIZES OF MERCURY VAPOR BULBS and other H.I.D. LAMPS
and general lighting supplies
STORE   Home Page  LINK
http://stores..com/gwjusticestoreestablished1888
ITEM DESCRIPTION;
box of ONE [ 1 ] bulb
750  WATT reflector R57
MERCURY VAPOR BULB, 
Exact Condition;
This bulbs is new, in that it has never been used; it has blemishes on
the base, but no visible important defects; it is vintage, and has been on the shelf for a while, but this makes no difference, it will work just fine; we will stand behind it for 30 days.
Box may or may not be included; we reserve the right to wrap this bulb
in any way we have to in order to prevent breakage.
Photo is exact.
Base Size;
HEAVY DUTY e39 MOGUL base, measures 39mm in diameter
SELF-BALLASTED, NO BALLAST NEEDED,
WORKS IN ANY MOGUL BASE SOCKET RATED FOR USE with
3 phase 277 volt line voltage
more technical information below;
HIGH COLOR RENDERING BULB,
WILL STAND UP TO A SIDE BY SIDE COMPARISON
WITH ANYTHING OUT THERE IN ITS CLASS
SELF BALLASTED MERCURY VAPOR BULBS
MAKE ONE FANTASTIC GROW LIGHT BULB. 
IT DELIVERS A CRI HIGHER THAN ALMOST ANYTHING OUT THERE,
C. R. I. IS ABOUT 93 OR BETTER.
IT EMITS A TREMENDOUS AMOUNT OF ENERGY IN THE RED
AND BLUE AND GREEN PARTS OF THE SPECTRUM,
MUCH HIGHER THAN ORDINARY MERCURY VAPOR BULBS,
EVEN BETTER THAN MOST FLUORESCENTS AND MH AND HPS.
THIS MEANS, YOU DO NOT HAVE TO SWITCH BULBS
DURING THE GROWING PROCESS.
Additionally, if you have a fixture that has a dead ballast, a licensed electrician may remove the ballast and other workings, and with line voltage of 277 volts, you may use this bulb in almost any high or low bay fixture, or any fixture with a 4 kw SOCKET, or any incandescent fixture rated for this wattage
THIS BULB HAS A BUILT IN SAFETY FEATURE;
TO WIT, IF THE POWER IS INTERUPTED, OR TURNED OFF, IT WILL NOT START BACK UP BURNING UNTIL IT COOLS DOWN TO ROOM TEMPERTURE, TO PREVENT DAMAGE TO THE FIXTURE, AND TO PREVENT DAMAGE TO THE BULB. THIS SELF CONTAINED SAFETY SWITCH IS fairly UNIQUE.
QUALITY BULB FOR GROWING PLANTS,
warehouse lighting, for high ceilings, etc.
Substitute for;
Duro-Test Fluomeric lamp
SAVE ON SHIPPING
AUTOMATICALLY
BY PURCHASING MORE THAN ONE,
AND / OR BY ADDING OTHER, DIFFERENT ITEMS FROM OUR EBAY STORE MARKED AS
DISCOUNT AVAILABLE" TO YOUR ORDER
PURCHASED ON THE SAME DAY & LOCATED IN THE SAME ZIP CODE
Just a very few of our items {such as coffee} are located in different warehouses, or are not discounted due to weight and / or special packaging and handling requirements
JUST WAIT TO GET
AND  OK
YOUR EBAY INVOICE
BEFORE YOU PAY 
Must use eBay shopping cart to qualify) 
We discount shipping instead of the eBay combined shipping because of the vastly different weights and packaging requirements of our various items. Our shipping and handling charge is more about the cost of special packaging than actual postage cost for the most part, and
IT IS ABOUT SERVICE 
Menu of Services Link; 
http://stores..com/G-W-Justice-Store-established-1888/Menu-of-Services.html
our FLAT RATE SHIPPING;
S & H charge
IS THE SAME TO EVERYONE
EVERYWHERE IN THE U.S.A.
including HI, AK, V. I.  or P. R.  
or local pickup / delivery / other 
SERVICE MEN AND WOMEN, BE ADVISED, PRICE IS THE SAME TO any APO 
fair for one is fair for all 
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WE ONLY SHIP BY INSURED PRIORITY MAIL WITH DELIVERY CONFIRMATION ON ORDERS OF
1000.00 OR MORE, SHIP FREE -
QUALIFYING ORDERS OF $100.00 OR MORE SHIP FOR A FLAT CHARGE OF $8.88 -
ON ALL OTHER ORDERS, PAY THE FIRST BOX COST ON ONE ITEM ONCE, THEN PAY THE LOWER, ADDITIONAL BOX COST ON THE REST OF YOUR SELECTIONS
S&H CHARGE INCLUDES THE ABOVE, includes a handling charge for next day service when available and specified, AS WELL AS THE BEST PACKING AND SHIPPING MATERIALS AVAILABLE TO US, including but not limited to; bubble wrap, vermiculite, paper bags, rubber bands, tape, peanuts, foam rubber, as well as other expensive materials such as butcher paper, etc.
Free samples of our peppermint candy are usually enclosed, and possibly other items as well
By purchasing this item buyer agrees to all terms of sale posted at our eBay store and accepts all terms above
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I ACCEPT  [ ^ ]
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FOR SPECIAL TERMS OF SALE OUTSIDE THE U.S.A.
AND  <<<<<
Remember the old saying....."ought to have bought it when I saw it"