Quantity   Component name
1 × Arduino Uno
1 × 15Amp Standard Power Outlet http://www.homedepot.com/p/Leviton-15-Amp-Duplex-Outlet-White-R52-05320-00W/202066670
1 × Opto-Isolated 2 Channel Relay 10amp http://yourduino.com/sunshop2/index.php?l=product_detail&p=218
1 × DHT22 Temp/Humidity Sensor https://www.adafruit.com/products/385
1 × Photoresistor https://www.adafruit.com/products/161
1 × 10k ohm resistor
2 × Regular old LEDs
2 × 560 ohm resistor