Recent content by sagar

fenix-store
  1. S

    driver for cbt-140 LED

    i m looking for driver for CBT-140 led with PWM dimming. So Driver ic is usefull for me. My specs as follows. I = 20A (typical) V = 3.5v (typical)
  2. S

    confuse about condenser lens

    Thank you sir but what will happed with aspheric condenser lens.
  3. S

    confuse about condenser lens

    use of aspheric condenser lens is to concentrate all light. as i saw if all light rays coming parallel then and only then it will give spot of light. if light rays are little bit inclined then?? will it concentrate all light.
  4. S

    aspheric condenser lens

    i am looking for aspheric condenser lens for concentrating light on 4.8mm diameter spot.My question is if i have 10 light source on ircle of radius 20mm. and this pass through aspheric condenser lens then what will be focal point i can get??
  5. S

    looking for aspheric condenser lens for led sources

    i am looking for aspheric condenser lens for concentrating light on 4.8mm diameter spot.My question is if i have 10 light source on ircle of radius 20mm. then what will be focal point i can get??
  6. S

    Color tempearature depends on what parameter

    Hello master's i am start to study behavior of lights. So i have a doubts that if i used perticular LED having of 1w. So color temperature of the light depends on which parameter. means if i used PWM that is 40% then what will happen??
  7. S

    Lux measuremtns distance

    Thank you sir but i saw most of the cases 1 meter distance is used.
  8. S

    How to change color tempearature

    Color temperature depends on what parameter.??
  9. S

    effect of ON time on lumen

    If i give 30% duty cycle then for 30% it will take full power that is same voltage and current. but is off for 70%.So power delivered to LED is averagely 30% right??? Then is there any affect on current??? As i think i am delivering same current for LED for 30%. And again i have doubt that will...
  10. S

    relation between brightness and Lumen

    What is exact relation between brightness and lumen. if i change the brightness then will lumen also get changed???
  11. S

    effect of ON time on lumen

    If i give on time 30% for led then what will be effect on that LED?? that means if i reduce the brightness by provide low power then what is difference in lumen.
  12. S

    Lux measuremtns distance

    What is ideal distance to measure illuminance (lux) of light source. Means distance from source to area which is illuminated.
  13. S

    Need very Brightness LED with higher Lumen

    I need led having lumen of 1000-2000 lumen for 10w.I require this for OT light.so please suggest the led having such limunous flux.
  14. S

    Cree XP-G2 added to the line - 2014

    Hi i am new to this area.i saw the datasheet is it possible change color tempearature using Cree XP-G2 and how?? is it possible to get high illuminance at 1 meter by concentrating all light to 200mm area.
  15. S

    How to change color tempearature

    i have led with color tempearature near about 5000k. but if i need to change in between 3000k to 5000k then how it can be possible?? which color will need to introduce yellow/ orange??? Thanks.
See more

Latest posts

Top