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General => General Discussion => Topic started by: wattMaster on June 10, 2016, 08:42:44 AM

Title: Silly LED replacements
Post by: wattMaster on June 10, 2016, 08:42:44 AM
Look here. (https://www.1000bulbs.com/product/153796/PLT-10081.html)
You likely know what is wrong.
Problem 1: Crazy Expensive!  :o
Problem 2: You pay big bucks for something less efficient!
Problem 3: You won't save money, You will actually be less efficient.
Just look at the LM/W: 400 Watt MH: 90. This LED: 89.
Combine that with glare, bad optics, and a few more things, you get a bad deal.
Title: Re: Silly LED replacements
Post by: dor123 on June 10, 2016, 08:55:42 AM
Not new to me at all: http://www.lighting-gallery.net/gallery/displayimage.php?pos=-116718 .
Title: Re: Silly LED replacements
Post by: wattMaster on June 10, 2016, 09:07:57 AM
Quote from: dor123 on June 10, 2016, 08:55:42 AM
Not new to me at all: http://www.lighting-gallery.net/gallery/displayimage.php?pos=-116718 .
It actually looks good, But I would not like the halved brightness if they had MH before.
Title: Re: Silly LED replacements
Post by: Lumex120 on June 10, 2016, 09:10:38 AM
Quite sad that someone was foolish enough to buy this. You could get more lumens from a 320w PSMH lamp. I once saw a 20w LED wallpack rated to replace 400w PSMH.  ???
Title: Re: Silly LED replacements
Post by: wattMaster on June 10, 2016, 09:14:18 AM
Quote from: Zarlog on June 10, 2016, 09:10:38 AM
Quite sad that someone was foolish enough to buy this. You could get more lumens from a 320w PSMH lamp. I once saw a 20w LED wallpack rated to replace 400w PSMH.  ???
What?  :o
It all boils down to marketing.
Title: Re: Silly LED replacements
Post by: Ash on June 10, 2016, 05:27:19 PM
Its the Equivalence game. Assume that the reflector in the lantern have matte black finish, lamp is a Merc 5 times past its rated life, ballast is a resistor, and you really get the promised energy savings...
Title: Re: Silly LED replacements
Post by: Lumex120 on June 10, 2016, 05:32:05 PM
Quote from: Ash on June 10, 2016, 05:27:19 PM
Its the Equivalence game. Assume that the reflector in the lantern have matte black finish, lamp is a Merc 5 times past its rated life, ballast is a resistor, and you really get the promised energy savings...
it's also supposed to be "accidentally" spraypainted black since it assumed that it is in an auto shop. Guess what? The fixture was rated for a lousy 520 lumens. Even a 20w CMH beats that by a ton.
Title: Re: Silly LED replacements
Post by: wattMaster on June 10, 2016, 05:38:17 PM
Quote from: Zarlog on June 10, 2016, 05:32:05 PM
Quote from: Ash on June 10, 2016, 05:27:19 PM
Its the Equivalence game. Assume that the reflector in the lantern have matte black finish, lamp is a Merc 5 times past its rated life, ballast is a resistor, and you really get the promised energy savings...
it's also supposed to be "accidentally" spraypainted black since it assumed that it is in an auto shop. Guess what? The fixture was rated for a lousy 520 lumens. Even a 20w CMH beats that by a ton.
What? If that's the 20 Watt LED, That's 26 LPW on a good day!