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23 July 2015 Question by: Rapid Customer
Q. I'm developing a product which would include a flashing led device. What is the frequency (rate of flash) with these leds, and is that adjustable by voltage regulation or other means? I'm looking for strobe light effect. Intermittent and brief operation, and emergency warning device.
A. Hi Don, thank you for your question. These 5mm Flashing LEDs are 1.5Hz apart from 55-1210 which is 1.8Hz, they are not adjustable.
04 September 2014 Question by: Rapid Customer
| Product code: 55-1892
Q. Does this LED require a load resistor?
A. Hi Steve. Thank you for your question. This would only require a resistor as the supply voltage is more than 5 volts.
17 February 2013 Question by: Rapid Customer
Q. I WOULD LIKE TO FIT ONE OR 2 LED,S TO MY DUMMY SOUNDERS
WHAT BATTERY WOULD I REQUIRE TO RUN THE LED FOR ABOUT 2 YEARS
A. Hi Joe. Thank you for your question. At a quick calculation, I estimate to run 1 of these LEDs for 2 years without recharging would require at least as 700AH battery - which is clearly nonsense. A better solution might be to have a solar panel that charges a battery during the day - and discharges during the night - such as 89-4969 then a small battery such as 18-0615 should do it for up to 2 LEDs.
16 February 2013 Question by: Rapid Customer
Q. I want to run 3 from 12 volt supply will there be any problems
A. Hi Bill. Thank you for your question. I would go for our higher voltage LEDs and wire in parallel.
19 January 2012 Question by: Rapid Customer
| Product code: 55-1898
Q. HELLO,
DO I HAVE TO PUT A SERIES RESISTOR WITH THIS LED
? MANY THANKS
GEOFFREY FOLKES
A. Hi Geoffrey, thanks for your question. Protective resistors are only required when the supply voltage is greater than the VF or VDD value – in this case, if the supply is between 4.5 and 6V max – then no resistor is required.
