Mercury Vapor Lamps - Sylvania 40w H45AY-40/DX Mercury Vapor

File information
Filename:	2011-08-28_00-05-09_78.jpg
Album name:	Silverliner14B / Mercury Vapor Lamps
Keywords:	Lamps
Company and Date Manufactured:	Sylvania, 1980
Model Number:	H45AY-40/DX
Wattage:	40w
Lamp Type:	Mercury Vapor
Filesize:	546 KiB
Date added:	Sep 02, 2011
Dimensions:	2592 x 1936 pixels
Displayed:	184 times
Exposure Bias:	1.14 EV
Exposure Time:	0
FNumber:	f/1.1440231249948
Flash:	No Flash
Focal length:	4.97 mm
Light Source:	Other
Make:	Motorola
URL:	http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=8172
Favorites:	Add to Favorites

Comment 1 to 6 of 6

Page: 1

streetlight98

[Sep 02, 2011 at 02:32 AM]

wow. I didn't even know they made 40w MV lmaps. Did they even make ballasts for these?

joe_347V

[Sep 02, 2011 at 04:16 AM]

I believe they did but I've seen others run them on LPF F40 preheat ballasts before. Shocked

f36t8

[Sep 02, 2011 at 07:12 AM]

A 35 W MH ballast without ignitor will work. A 40 W fluorescent ballast would underdrive it.

Silverliner14B

[Sep 03, 2011 at 02:01 AM]

Yep they made 40w ballasts they went by the ANSI code "H45".

LilCinnamon

[Dec 27, 2011 at 10:36 PM]

Weird lamp. I never heard of a 40 watt MV though. But it sure would be brighter than a 40 watt Incandescent. But not by too much.

What were these lamps used for anyway?

rjluna2

[Dec 27, 2011 at 10:48 PM]

Where I work, there are bunch of 40/50 Watts MV bulbs by the walking area. I have seen them light up, some don't work and some do. Also, MARTA rail still use those 40/50 Watts MV in some intervals for the live rail lines slowing replacing with 70 Watts MH. I can't image how long will the MH last at the live rail lines Razz

Comment 1 to 6 of 6

Page: 1

Gallery of Lights

Sylvania 40w H45AY-40/DX Mercury Vapor

Here's a 40w merc in a larger B21 envelope. Can't imagine this to be very bright.