Hi,
Earlier I had posted a question about dimming MR16 LED.
Now, I am trying to figure out if I can dim this MR16 LED bulb with a potentiometer (attached is datasheet for bulb, potentiometer info below).
This bulb has two pins that accept 2V to 15V AC/DC. I have 12 VDC @ 1 Amp input supply available to give to this LED bulb. I found Honeywell potentiometer rated for 4 Watts and the LED bulb that I want to dim is also rated for 4 Watts. If I hook up this pot between 12V & LED bulb could it work?
Second question: How do I figure out what resistance to select for the pot. Just as a trial & error, I tried a 1/4 Watts pot with 1M Ohm resistance (audio taper) and there was almost no dimming, I got 0% to 100% dimming in 10 degrees rotation of the knob.
HONEYWELL 58 Series Industrial Potentiometer, Wire Wound Element, Solder lug Terminals, 4 W Power Rating, 5 kOhm Resistance Value
Product SpecificationsPotentiometer
TypeIndustrial Element TypeWire
WoundTerminal Solder lug
Power Rating4 W
Resistance Value5 kOhmResistance
Tolerance±5 %Linearity±2 %
Bushing Thread9,53 mm [0.375 in] x 32 NEF-2ABushing Length9,53 mm [0.375 in]Bushing TypeStandardShaft Diameter6,35 mm [0.25 in]Shaft Length50,80 mm [2.0 in]Shaft EndingPlain roundBody42.93 mm [1.69 in] diameter, ± 0.79 mm [0.031 in], except at terminal standoffElectrical TaperLinearOperating Temperature-55 °C to 105 °C [-67 °F to 220 °F]Working Voltage (Max.)350 VRotational Life25000 cyclesMechanical Rotation300°AvailabilityGlobalSeries Name58UNSPSC Code4111363300UNSPSC Commodity4111363300 Potentiometers
Thanks.
Mayur
Earlier I had posted a question about dimming MR16 LED.
Now, I am trying to figure out if I can dim this MR16 LED bulb with a potentiometer (attached is datasheet for bulb, potentiometer info below).
This bulb has two pins that accept 2V to 15V AC/DC. I have 12 VDC @ 1 Amp input supply available to give to this LED bulb. I found Honeywell potentiometer rated for 4 Watts and the LED bulb that I want to dim is also rated for 4 Watts. If I hook up this pot between 12V & LED bulb could it work?
Second question: How do I figure out what resistance to select for the pot. Just as a trial & error, I tried a 1/4 Watts pot with 1M Ohm resistance (audio taper) and there was almost no dimming, I got 0% to 100% dimming in 10 degrees rotation of the knob.
HONEYWELL 58 Series Industrial Potentiometer, Wire Wound Element, Solder lug Terminals, 4 W Power Rating, 5 kOhm Resistance Value
Product SpecificationsPotentiometer
TypeIndustrial Element TypeWire
WoundTerminal Solder lug
Power Rating4 W
Resistance Value5 kOhmResistance
Tolerance±5 %Linearity±2 %
Bushing Thread9,53 mm [0.375 in] x 32 NEF-2ABushing Length9,53 mm [0.375 in]Bushing TypeStandardShaft Diameter6,35 mm [0.25 in]Shaft Length50,80 mm [2.0 in]Shaft EndingPlain roundBody42.93 mm [1.69 in] diameter, ± 0.79 mm [0.031 in], except at terminal standoffElectrical TaperLinearOperating Temperature-55 °C to 105 °C [-67 °F to 220 °F]Working Voltage (Max.)350 VRotational Life25000 cyclesMechanical Rotation300°AvailabilityGlobalSeries Name58UNSPSC Code4111363300UNSPSC Commodity4111363300 Potentiometers
Thanks.
Mayur
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