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Sharmman It's a hard switching SMPS and independently of low ripple output , even working in the same floor with receivers and antennas , 160m,80m,40m bands will be seriously affected from transformer harmonics transmission , it won't affect bands over 6m though. Low frequency transformers (50-60Hz) are highly recommended for HF ham radio stations.

2020-09-21 06:14:54 مساعدة (0)
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Sharmman Latest flux of Cree XHP50.2 3V can provide over 4500 Lumen at 14A , so 3X14=42A and 13,500 Lm (without optics) and even the strongest 21700 30T can't exceed 30A if wiring of direct 1mR mosfet is ≤ AWG14 plus spring by-pass.As I finally discovered , this can't exceed 6500 Lumen due to very thin leds wires and mosfet loss.

2020-09-20 06:40:41 مساعدة (0)
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Sharmman 2020-07-21 08:17:49
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Sharmman 2020-07-21 08:15:27
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سؤال: I do not see a beam range listed in the specs. Can you provide the beam range distance please?

السؤال بواسطة shadel5 على 2019-07-31 11:13:32

Sharmman According to declared ratings of 89.733 Cd , theoretical distance is calculated to 599,11 meters.

2020-05-11 03:15:08 مساعدة (0)
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Sharmman 2020-05-11 14:58:22
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Sharmman 2020-05-08 05:42:14
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سؤال: What size batteries does this light take and how many

السؤال بواسطة Sizemore3rd على 2019-04-02 09:13:06

Sharmman Definitely 2 x 26650 , Cree XHP70.2 needs over 8A for 5500 Lm and 18650s will last half time compared to any highly rated 26650 of 4800-5500mAh.

2020-04-28 01:31:52 مساعدة (0)
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Sharmman Flat top batteries like those you've bought , need a piece of neodymium magnet or soldering to create a button top , else there no contact between them !

2020-04-28 01:24:45 مساعدة (0)
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