three side by side beamshots, for color comparisons
Eye10 triple N219b 3500k 9080, RRT-01 N219b 4500k 9080, Eye10 XM-L 6000k
On left below, a Titanium Eye10 TiC w triple N219a 4500k 9050, note it is yellower than the 219b 3500k 9080 above:
Eye10 Triple N219b 3500k 9080
outputs on a fresh 16340:
HDS rotary modded to n219b 3500k 9080 makes 170 lumens
Niteye Eye10 TiC Titanium rotary w triple N219a 4500k 9050 makes 306 lumens
Jetbeam TCR-1 Titanium rotary, converted to n219b 4500k 9080 makes 350 lumens
Niteye Eye10 rotary, w triple N219b 3500k 9080 makes 360 lumens
Jetbeam RRT-01 rotary converted to n219b 4500k 9080 makes 395 lumens
Niteye Eye10 with the stock 6000k XM-L makes 635 lumens
Jetbeam compared to HDS, some differences
The Jetbeam Rotaries have much lower low than HDS.
The Jetbeam RRT-01 rotary has smooth ramping, not 24 hops up in brightness like HDS, of which 12 are below 2 lumens and only 2 are above 100 lumens.
The Jetbeam rotary has a bezel down pocket clip that does not interfere w the rotary dial.
The Jetbeam rotary is smaller, lighter, and lower priced than HDS, and accepts 18350, that HDS will not.
The Jetbeam rotary has no tailswitch, and the dial is not on the tail.
The size, weight, price, ergonomics and UI of the Jetbeam are better for me than HDS.