According to Official Guinness Records,
The largest collection of candles belongs to Lam Chung Foon (Hong Kong) and consists of 6,360 different candles as of 23 December 2011 in Shatin, Hong Kong. Lam Chung Foon started his collection in 1980 and the collection is currently housed in four large temperature regulated showrooms. His familly have run a large candle manufacturing business since 1968.
For a complete list of 2011 records, please visit 2011 Guinness Records in China.