Note that values of the light damage every 4 seconds should be taken from the effect that is put on the target: mousing over the pet skill tooltip provides you with incorrect information. Information taken should be entered at the pet's level.
Power cost values on the other hand can be taken from the pet skill tooltips and should then be entered at the Lore-master's level.
More information on gathering pet values is found on User:Ravanel/Sandbox2#Pet Skills with Missing Values. --Ravanel (talk) 06:35, 2 February 2012 (EST)