
These days, the rings can affect yellow objects just fine, due to all the weirdness introduced by the "emotional spectrum". More than that, they haven't had the yellow weakness for more than two decades. They're not magically protected against a #2 pencil, but they're also no more vulnerable to one than, say, Batman. A Green Lantern doesn't start to die if there's something yellow nearby. The rings couldn't affect or protect against yellow objects, but they weren't "weak" against such things.That's like saying you could kill Bruce Lee with a knife just because he's not wearing armor.Well, she can also control plant life from her mother, so, not so much, but otherwise.So, essentially, she could be defeated with a #2 pencil.She inherited her father's weakness along with his powers, and this was when yellow was still a major problem, so she had BOTH weaknesses. For awhile, his daughter Jade was a member of the Green Lantern Corps.Also, so far as I know, he still has that weakness against wooden objects. That would be the Golden Age Green Lantern Alan Scott, who received his power via a magic lamp and is associated with the modern Green Lantern/Green Lantern Corps in name only.One of them had a weakness against wood.The proper and only explanation you will ever find is "lol, that wacky silver age" and move on. If that is the only thing about the Silver Age you find overly silly, you haven't been reading very much Silver Age stuff.A yellow lamp that Hal is hit over the head with, a yellow getaway car, a yellow missile. What does get silly, however, is how often something yellow turns up every issue. Yeah, it's comic book science, but at least there was an attempt to explain it. It could be removed, but then the batteries and rings would be non-functional. In Hal's very first appearance, the dying Abin Sur explained that the rings and battery had a "necessary" yellow impurity.Just pray you never have to face anyone with a credit card and access to a Sherwin-Williams." "Here's one of the most powerful artifacts in the universe. Yellow? Seriously? They've sort-of explained this in the modern era, but back in the Silver Age, it was played perfectly straight.Guy Gardner IIRC struggled with this a Red Power Ring attached itself to him and he was a sort of hybrid Green/Red Lantern for a while.but the Red Light kept trying to influence him. It's a tricky proposition though, since some of them - namely Orange (Greed), Red (Rage) and Violet (Love) can be really strong and tend to influence their user more than the others if you're not careful. Which makes sense (as much sense as comic book "science" fiction does anyway) when you consider the rainbow is just white light split into its components.

Actually not only can you wield more than one, but if you get all seven colors to work for you you become a White Lantern.it happened, sometimes the rings combine into one weird two colored ring, sometimes it replaces the original ring.What happens when somebody wears more than one type of power ring? Does their hand explode? This assumes that whoever is doing the wearing has a countermeasure to the identity check the rings have such as what the Manhunters did with tissue samples.
