Red 5mm Diffused LED - 275mCd

Stock code: 3504

Pricing:Ex VATInc VAT
1+ £0.10
(excl. VAT)
(inc. VAT)
10+ £0.06 £0.07
100+ £0.05 £0.06
1000+ £0.04 £0.05
In stock


No of parallel LEDs:
LED forward voltage: V
Typical LED current: mA
Battery voltage: V
Resistance (calc): Ohms
Preferred value: Ohms
Resistor colour bands:
Enter the operating voltage, click calculate resistor and the resistor value to work with the LED described on this page will be shown.
Forward voltage drop 2.1V.
Viewing angle 60 degrees.
Max forward current 25 mA.
Luminous intensity 275 mCd (@20mA).
Lens types Diffused.

Same Day Dispatch

  • Orders placed online before 3:00pm Monday - Friday (excluding public holidays and our Christmas shutdown period) are always dispatched the same day provided the goods are in stock. If the goods are not in stock we will endeavour to contact you as soon as possible to discuss a dispatch date.

UK Deliveries

  • If you live on the UK mainland and don't have any large materials or lithium batteries in your order it will cost £3.95 (£4.74 including VAT) if you spend less than £40 (£48 including VAT).
  • If you spend between £40 and £200 (£48 - £240.00 including VAT, excluding large materials or lithium batteries) delivery is free to most locations, £12 (£14.40 including VAT, excluding large materials or lithium batteries) to Northern Ireland and £15 (£18.00 including VAT, excluding large materials or lithium batteries) to UK remote locations. For a list of postcodes that will be charged the remote location rate: remote area list.
  • If you spend over £200 (£240.00 including VAT, excluding large materials or lithium batteries) delivery is free within the UK.

Rest of the world

  • These orders are sent via UPS, and the cost is dependant on the service you choose at checkout. Alternatively you can choose the free collection option and have your own courier collect it from us. International orders can only be shipped to the registered card address. Please note: International orders may be charged import duty dependant on local import laws and duty rates. These charges are usually billed to you directly from UPS.
  • Delivery times vary for international orders depending on the service selected and the destination. You can see the delivery time and cost at the shipping stage, or by using the shipping estimator from within the shipping basket.


  • If you would like to collect your order, or use your own courier then there is an option you can select during checkout. We do not charge a packaging or handling fee for this service, and you will receive an email when your order has been processed, you can collect half an hour after receipt of this email.

Further Information

What is the forward current of your Red 5mm Diffused LED - 275mCd, please?

Kind Regards
and Season Greetings

Asked by: Paul Johnson
Many thanks for the query.
The forward voltage is 2.1V and we would recommend 20mA current.
Thank you
Answered by: Rebecca Diamond

I would like to do an e-textiles product that has two flashing red LEDs. Please could you let me which LEDs I need to buy and whether or not the LEDs each need a resistor. I plan to use a 3V cell battery.

Also, do you accept orders on LEA school purchase orders?

Asked by: Julie Drake

We sell a red flashing LED which is suitable for use with the e-textiles produces, 3538-red-flashing-5mm-water-clear-led-30deg-3500mcd we also sell this in a kit version which includes everything you need to make a simple kit, 2702-electro-fashion-sewable-led-kit. We do accept purchase orders from schools, which can be sent to the sales email

Answered by: Michael Lockhart

Have purchased some 3504 but need to know the wattage. Can you advise please
Asked by: keith
The power or wattage is just the current x voltage. So 0.025A x 2.1V = 0.0525W
Answered by: Aaron Sturman

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