I spent months researching over on candle power forums and budget light forum and have accumulated about 8 lights in a couple years. There's so much to consider. Do you want lithium rechargeables? 18650's offer the best all around performance in a reasonable size. There are some AA size lithiums (14500) that will come close to 1k lumens. I've found I want tail clicky for carrying around. I literally melted a north face when a hot rod I have accidentally turned on in my pocket (emisar d4, 3500 lumens for $40!)
I really like my convoy s6. It's simple, cheap ($20 without batteries on MTN electronics) and stretches comfortable above 1k lumens on its highest mode.
Can't go wrong with olight, klarus is also awesome. They're all a little different.
ETA: just saw its for a wedding party, get something that will take simple alkaline AA's and can also take lithium. Unless you want to get them cells and chargers. Olight is the best bet for larger cell because it has the USB/magnet recharging option hasn't is well protected so they don't need to be well versed in the dangers of lithium and learn to charge them correctly.
I really like my convoy s6. It's simple, cheap ($20 without batteries on MTN electronics) and stretches comfortable above 1k lumens on its highest mode.
Can't go wrong with olight, klarus is also awesome. They're all a little different.
ETA: just saw its for a wedding party, get something that will take simple alkaline AA's and can also take lithium. Unless you want to get them cells and chargers. Olight is the best bet for larger cell because it has the USB/magnet recharging option hasn't is well protected so they don't need to be well versed in the dangers of lithium and learn to charge them correctly.