The battle between the Fenix vs P7 series is just really the battery / time.
An standard Fenix requires 2x AA
• Constant brightness: 109 Lumens
• 3.3-hour Runtime
A standard P7 requires 1x 18650 also 1hr on high (900 lumens) and same distance as the Fenix
i rather carry 3 x 18650, and have more light, than low light for 3 hr
the P7 on its low setting, can last twice as long, and still throw more light