Kiierr302 Ultra Flex Laser Cap
302-laser flexible cap, 6 minutes a day; listed under a clearance that describes only Kiierr’s 148 and 272.
$1,799
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Usability
Usability
The 302 Ultra Flex is Kiierr's flexible 302-laser cap: 302 diodes at 650 nm, 1,510 mW in total by Kiierr's figure, for continuous 6-minute sessions every day, with sensors that keep it off until it is on a head. Its maker, Cosmo Far East, lists it with the FDA as the KIIERR-302 under K181878, Kiierr's 2018 clearance, which describes only the 148- and 272-diode caps on a 30-minute schedule, so it scores 2 on verification. Cosmo's own later clearance, K252325 (2025), describes a 302-diode cap at 650 nm under Cosmo's model name, but no listing places the Kiierr 302 under it. No measurement of its output has been published. At $1,799 it is $600 above the 272 Premier and $400 below the 312 DualWave, which adds 808 nm lasers. The warranty is 2 years.
- 302 lasers at 650 nm, 1,510 mW total per Kiierr
- 6-minute daily sessions with an on-head sensor and auto-off
- Flexible cap, cordless
- Fits heads 23.5 to 24 in, per Kiierr's spec tab
- Listed under K181878, which describes only the 148 and 272
- No output measurement published
- $600 more than the 272 Premier
- 2-year warranty
- Guarantee refunds keep a 25 percent fee
- Kiierr's stored description still gives 30 minutes every other day
The Kiierr 302 Ultra Flex is a flexible laser cap with 302 diodes at 650 nm, which Kiierr rates at 1,510 mW in total, worn under the included ball cap. It runs continuous 6-minute sessions every day from a rechargeable battery pack, uses sensors so it only switches on when it is on a head, and turns itself off at the end. Kiierr sizes it for heads 23.5 to 24 inches around and covers it for 2 years, with the 7-month money-back guarantee and its 25 percent fee.
Additional information
Specification: Kiierr 302 Ultra Flex Laser Cap
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