MR16 AC120V LED Light Bulbs,50W Halogen Bulb Equivalent,110-120V, 5.5W,500 Lumens,4200K Daylight White,GU5.3 Base,Non-Dimmable,Replacement for Landscape Track Lighting,6-Pack(4200K) - - Amazon.com
The light bulb transition: when standards and subsidies promote sub-optimal technologies - Energy Post
Lumens vs Watts: How to Choose the Right LED Replacement Bulb
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Eveready Led Light Bulbs, Non-Dimmable, 100 Watt Equivalent Light Bulbs (14W Led Bulb), 1600 Lumens, 2700k Soft White Color, A19 E26 Base Led Replacement for Halogen Bulb, UL Certified – 24 Pack
GE 10-Watt 12-Volt T3 Bi-Pin LED Light Bulb with G4Base - 130 Lumens - NEW 43168527477 | eBay