I know I’m in the middle of talking about the E04, but… 2 days ago I started to measure and “real life” test the X1L FFL707-5000k vs Convoy M21E with GT-FC40 5000k, its closest competitor for tint and throw that I have. Yesterday I ordered a second X1L this time with FFL707-4000k. It’s on sale for a very nice 30% off and I don’t want to miss out.
X1L with the Gaggione LLC59NF TIR optic has fantastic beam shape: throwy (~500m, about same as E04 Surge) with one of the largest hotspot I’ve experienced in a small light. Personally, I dislike very much throwy light with tiny hotspot like Sofirn IF22a with SFT40 because of the narrow field of vision, and X1L beam is a revelation. X1L also has the most beautiful tint (Turbo Duv a cool -0.0095) that I’ve experienced for a 5400k CCT light. And has among highest sustained output after 45 minute walk at Turbo-1 level: 1350 lumen, and relatively cool running. It seems to be just easily cruising.
IMvHO, what Firefly people are doing with both host and LED is borderline revolutionary. GT-FC40 was for me also somewhat of a game changer for highish output with great tint LED, but NOT nearly to the level of these guys.