Greetings,
This seems to be the best global source of high-performance LED & battery knowledge. We were wondering if you might provide some guidance for building an "ultra-high-performance" desklamp lamp. This is quite similar to a flashlight.
The lamp will be used for comfortable reading, hobbywork, computerwork & SpeedCubing (solving rubick's cube at high speed) both day and night.
Ideally, the lamp has:
- No flicker
- Adjustable brightness
- Adjustable white color
_______________________________
More background FYI - The SpeedCubing challenges are especially interesting as the best cubers are solving around about 5 seconds.
-- So "any" stroboscopic flicker plus the typical 120Hz line flicker can be both distracting and increase the time it takes for a cuber to recognize colors (latency). We want to entiresly avoid PWM and AC issues if possible.
-- So a "fuller spectrum" light that helps a cuber to quickly differentiate the six colored stickers is important (especially: red-orange, green-blue, white-yellow).
_______________________________
**** Our initial idea was to pick up a few commercial A19 bulbs from Philips (say 2700K and 5000K), remove the LED PCB assemblies, and run them with a rechargable battery pack (say lipo from cordless tools or RC toys, or just an old led acid battery). We could change brightness and white color with a simple analog scheme TBD.
We would like a slick LED solution but maybe need to complement this with sunlight and an incadescent bulb.
Running through these forums for the past week or so, we "uncovered" some higher performance LED options:
==> Soraa's Vivid 95CRI seems to have even nicer LEDs. The MR16 are available from 2700K to 5000K (we could bypass the onboard driver). They also have that nice filter disc system to increase beam to 60* and decrease color below 2200K. Their constant current bulbs seem to only go up to 3000K unfortunately.
==> We also saw that people in other threads recommended the Yuji and Xicato products. The Yuji High CRI (VTC) products look interesting but are staggeringly expensive. Their SMDs are less expensive but probably a non-starter for the DIYer
https://store.yujiintl.com/collections/vtc-series
==> The Xicato XTM is another option
http://www.xicato.com/sites/default/files/documents/DDS XTM Artist Series 170221_1.pdf
https://led.cdiweb.com/ParametricSe...lete:0,p_manuf_id:1589,p_product_family_id:3)
Any recommendations would be highly appreciated!
This seems to be the best global source of high-performance LED & battery knowledge. We were wondering if you might provide some guidance for building an "ultra-high-performance" desklamp lamp. This is quite similar to a flashlight.
The lamp will be used for comfortable reading, hobbywork, computerwork & SpeedCubing (solving rubick's cube at high speed) both day and night.
Ideally, the lamp has:
- No flicker
- Adjustable brightness
- Adjustable white color
_______________________________
More background FYI - The SpeedCubing challenges are especially interesting as the best cubers are solving around about 5 seconds.
-- So "any" stroboscopic flicker plus the typical 120Hz line flicker can be both distracting and increase the time it takes for a cuber to recognize colors (latency). We want to entiresly avoid PWM and AC issues if possible.
-- So a "fuller spectrum" light that helps a cuber to quickly differentiate the six colored stickers is important (especially: red-orange, green-blue, white-yellow).
_______________________________
**** Our initial idea was to pick up a few commercial A19 bulbs from Philips (say 2700K and 5000K), remove the LED PCB assemblies, and run them with a rechargable battery pack (say lipo from cordless tools or RC toys, or just an old led acid battery). We could change brightness and white color with a simple analog scheme TBD.
We would like a slick LED solution but maybe need to complement this with sunlight and an incadescent bulb.
Running through these forums for the past week or so, we "uncovered" some higher performance LED options:
==> Soraa's Vivid 95CRI seems to have even nicer LEDs. The MR16 are available from 2700K to 5000K (we could bypass the onboard driver). They also have that nice filter disc system to increase beam to 60* and decrease color below 2200K. Their constant current bulbs seem to only go up to 3000K unfortunately.
==> We also saw that people in other threads recommended the Yuji and Xicato products. The Yuji High CRI (VTC) products look interesting but are staggeringly expensive. Their SMDs are less expensive but probably a non-starter for the DIYer
https://store.yujiintl.com/collections/vtc-series
==> The Xicato XTM is another option
http://www.xicato.com/sites/default/files/documents/DDS XTM Artist Series 170221_1.pdf
https://led.cdiweb.com/ParametricSe...lete:0,p_manuf_id:1589,p_product_family_id:3)
Any recommendations would be highly appreciated!