The phrase "a pair of flashlights" is correct and usable in written English.
You can use it when referring to two flashlights that are being considered together as a unit.
Example: "I always keep a pair of flashlights in my emergency kit in case of power outages."
Alternatives: "two flashlights" or "a couple of flashlights."
He came back from his house with a pair of flashlights, and Eykelboom followed them all in.
Mr. Wolman, whose work in the Israeli cinema goes back to the 1970's (and includes a couple of the popular "Lemon Popsicle" comedies), isn't a graceful stylist, and his film is full of redundant scenes, clumsily explicit dialogue and images that seem to have been lighted with a pair of flashlights.
Consider keeping a pair of shoes, a flashlight and an energy bar under your bed.
Bruce put on a pair of waders, grabbed a flashlight and went down to retrieve wine.
She knows her way around the underbelly of an old English sports car, the kind that can be mastered with a flashlight, a pair of Vise-Grip pliers and a screwdriver.
Depending on your purposes and your projects, most people will need, at the very least, a screwdriver set with both flat-head and Phillips screwdrivers of a variety of sizes, a good quality hammer, a wrench set, a pair of pliers, a tape measure, flashlight, utility knife, gloves and safety glasses.
The only light comes from a pair of dim fluorescent bulbs and the flashlights that many club-goers carry with them.
Depending on circumstances and mood, he might also carry a folding knife and, at night, a flashlight in a pair of Woolrich chinos his girlfriend bought for him.
"Let's do this, Cherie," he instructed, pointing his flashlight at a pair of shining eyes moving quickly through the water, towards the bait.
I'm back to sleeping with a flashlight at hand, a pair of shoes next to the bed and a wad of cash tucked away.
Inside is a pair of putty knives, a paint scraper, a Leatherman multi-tool, several long-necked flathead screwdrivers, and three backup flashlights, among other items.
