Effect duration for Sun variant channelling

[The Great Rinaldo!]

Ultimate Magic, page 31 wrote:

Sun: Heal—The illumination level in the area increases by one step, and creatures gain a channel bonus on saves against blindness and light-based effects. Harm—Creatures are dazzled for 1 minute; creatures with light blindness or light sensitivity are blinded instead of dazzled.

How long does the effect last for the heal effect? Most of the listings specify (generally either 1 minute or until the cleric's next round) but this one does not. Is there errata on this somewhere?

[tivadar27]

I'd like an answer to this as well... Haven't been able to find anything. Also, I assume "in the area" is within the range of the channel...

[Gingerbreadman]

Doing some necro:
Anything new on this one?

[Magda Luckbender]

The Variant Channel rules have this sort of problem. They were not properly play tested. It's up to the GM. A likely ruling might be 'until the start of your next round'