DinoDirect has the Sipik 200 Lumen 3W 1-Mode Focus Aluminum LED Flashlight (Black or Silver) for $5.99 - 10% off with coupon code crazydino [Exp 5/31] = $5.39 with free shipping. Measures 3.94" x 0.8" and is powered by 1 x AA battery (not included).
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1 AA battery would probably have a hard time putting out 200 lumens.
^ Depends on the battery. Eneloop AA can supply up to roughly 4A for a while, which at 1.2V nominal is 4.8W, then maybe an 80% efficient boost driver circuit for 3.8W at the LED.
You can get 200 lumens from an LED at 3.8W... but there's another issue. Minimally sized single AA lights would get too hot to hold at 3.8W drive, and would need fairly expensive construction to provide good heatsinking. Thus, your average generic AA light drives the LED at closer to 2W even if it claims 3W LED, then they give the lumens the LED would have had at 3W without any reflector or lens loss which is a bit deceptive, but on the other hand you can't complain too much at that light:dollar ratio.
^ Exactly