Quantity   Component name
1 × arduino micro Why? because i can buy this more cheap from ebay than any other processor (only the IC) locally.
1 × MOC3021P optotriac - no zero crossing detection, so it can switch on anytime
1 × BTA16 800BW Discrete Semiconductors / Thyristors (DIACs, SIDACs, TRIACs, SCRs)
1 × T6 220/24V 2W transformer for signallling lightbulb
1 × KBPC2510 Discrete Semiconductors / Diode Arrays
1 × generic ATX PSU diode bridges i have lots of them