The ELV001A kit, features two 2GB modules clocked at 1333MHz with 7-7-7-21 latencies, all at 1.35V, while the ELV002A works at 1600MHz with 9-9-9-24 at the same voltage. Both kits are cooled by Exceleram's Blue Culvert heatspreaders that should be enough to keep those modules at reasonable temperatures.
Source: FUD Zilla