degarb
Flashlight Enthusiast
I use 300 lumen 2sx18650s cc current home made headlamps at work (color texture inspection and hunting 1 to 3 meter, painting ) that need to be minimum ly 4k candela (1000 lux at 2 meter 90 degree angke) for 10 hour minimum runtime, hot spot 12 degrees. . 15 is ideal to cover rods, however, pi r squared means 49pi v 36pi so not practical when xpl efficiency still struggling to meet spec at 12 degree in a wearable form factor proven to work (toolbelt light form factor proved to be not practical over long haul).
I keep trying to buy edc headlamps that will go 4 hours, be super small and lightweight, with no luck. . Too short run times:too dim! , Faux constant current, too heavy to seriously carry. . I got a lipo 1200 ma usb rechargeable that is shipping. . I suspect it won't hold a charge 1 or 2 week out, probably 2 hours and only 2k candela. Not cc, I bet. . I picked this one since I can't tolerate the weight or size of the single 18650s lights I have, but 1200 mah beats aaa 850mah. So far, with the single 18650s and the tir 3aaa, i can only read and do brief amounts of- not serious- color inspection with the 250 lumen energizer light or the hank/bang good 18650s.
Contemplating making my own single 18650, where I can control the current (would want 1 watt max, infinitely dimming cc) xpl hi, all plastic construction for weight, or aluminum can thin housing. . The driver is tripping me up. . These AMC 7135s hardly seem constant current, nor remotely efficient, compared with a buck controller (only useful on 2 cell lights). . Maybe a 2 cell lipo based on two small cell phone batteries is way to go. . Then the charging circuits would get complex, as you would need a switching system to cc/cv the cells individually. . Hmm, maybe incorporate the qualcomm 3.0 tech into a good light etc xpl hi headlamp! . Probably not possible without cpu. The rcr123 capacity is pretty lame. . Is there a true half size and capacity cell to the 3400mah 18650s?
I keep trying to buy edc headlamps that will go 4 hours, be super small and lightweight, with no luck. . Too short run times:too dim! , Faux constant current, too heavy to seriously carry. . I got a lipo 1200 ma usb rechargeable that is shipping. . I suspect it won't hold a charge 1 or 2 week out, probably 2 hours and only 2k candela. Not cc, I bet. . I picked this one since I can't tolerate the weight or size of the single 18650s lights I have, but 1200 mah beats aaa 850mah. So far, with the single 18650s and the tir 3aaa, i can only read and do brief amounts of- not serious- color inspection with the 250 lumen energizer light or the hank/bang good 18650s.
Contemplating making my own single 18650, where I can control the current (would want 1 watt max, infinitely dimming cc) xpl hi, all plastic construction for weight, or aluminum can thin housing. . The driver is tripping me up. . These AMC 7135s hardly seem constant current, nor remotely efficient, compared with a buck controller (only useful on 2 cell lights). . Maybe a 2 cell lipo based on two small cell phone batteries is way to go. . Then the charging circuits would get complex, as you would need a switching system to cc/cv the cells individually. . Hmm, maybe incorporate the qualcomm 3.0 tech into a good light etc xpl hi headlamp! . Probably not possible without cpu. The rcr123 capacity is pretty lame. . Is there a true half size and capacity cell to the 3400mah 18650s?
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