LED replacement bulbs, the options get better and cheaper - Panbo
LED vs Halogen, CFL, or Tungsten: Which Bulbs Are Better? - Birddog Lighting
Super Bright 12 Watt PAR38 E27 LED Spotlight, Replace 80 Watt Halogen Bulbs
LED Vs HALOGEN - 5 MAJOR DIFFERENCES | Northerncult
Switch on to LED lightbulbs before September's halogen ban | Energy bills | The Guardian
2 x E17 LED Bulbs, for Under Microwave Light Bulbs, Over Stove Lights, Home Lighting, Warm White 3000K, 4W 40W Halogen/Incandescent Bulbs Replacement,AC110-130V Non-dimmable - Amazon.com
LED instead of halogen: Why the change is really worth it
Comparison of Energy-Efficient Bulbs | DelMarFans.com | DelMarFans.com