All of the following are true for light cure composite except:
(A) Held at distance of 1 mm from tooth (B) Use of orange glass shield for eye protection (C) Polymerization reaction continues for a period of 72 hours (D) Adding increments of 1-2 mm
(C) In case of light cure composites, application of light source to the composite material is held at a distance of 1 mm from the tooth surface and the 1-2 mm of increments are added, bulk addition of composite is contraindicated. 
Usually, 70% of polymerization takes place during the first 10 minutes, though the polymerization reaction continues for a period of 24 hours. 
The operator is asked to wear an orange glass shield for the protection of the eyes.

Ref: Textbook of Operative Dentistry, Nisha and Amit Garg, 3rd edition, Pg no:264