The H600 is Rotos latest lock and this version will replace older 2 hook, 2 roller Roto locks although keeps may need to be repositioned. Please note that Roto refer to their mushrooms as V-cams.
Operation: Lift lever.
Latch reversal: Insert an allen key into the small hole above the latch. Push all the way through and press down to release the latch. Remove the latch reverse and reinsert.