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Specifications:

Product Name:LED light-emitting diode
Size: 3mm, 5mm
Product color: 18-Colors
Shape: Round head
Type: long foot, short foot
Long feet: 28mm, short feet: 18mm
Package quantity: 50/1000pcs
You can select the specifications you want from the drop-down box above.

Voltage and current size:
Light-emitting diodes have their own rated voltage size and rated current, generally conventional light-emitting diodes are small power, voltage in about 3V, current is generally 20MA, if the light-emitting diode for household electricity 220V, then you need to increase the resistance, the calculation method is as follows:
Access voltage: 220V
Rated voltage: 3V
Rated current: 20MA
Note: LED lamp beads in series with voltage and parallel current,
Example of connecting 3 in series:
3*3V=9V
220V-9V=211V
211V/0.02A=10550Ω
Product features: low power consumption, uniform luminescence, impact resistance and vibration resistance, can be used in parallel
LED positive and negative resolution:
1. Look at the pins: long foot positive electrode, short foot negative pole
2. Look at the head: the pins in the head, the large head is the negative pole, and the small head is the positive pole

Welding precautions:
1. Manual welding:
Welding temperature: around 260°C
Welding suggestions: welding time is not more than 5 seconds, fortunately in 3 seconds, the number of welding should not exceed three times. The temperature selection of ferrochrome is generally determined according to the composition of the tin wire, and is not constant.
2. Automatic welding:
Soldering temperature: 260
Welding suggestion: set to automatic spot welding, the setting time is 3 seconds, and the number of welding times is not more than 3 times

Product scope and use: widely used in all kinds of home appliances, electronic watches, electronic calendars, digital, communications, lighting, electronic toys, traffic instructions, lantern decoration, bar lighting, stage special effects and other related production enterprises
Application fields: mobile power marquee lights, balance car dazzling lights, Christmas lights, stage rendering lights, shoe lights, instrument back lights, etc.

Package Including:

According to Your choice.

Payment:

We accept Paypal only, It is fast, Easy and Safe.

Payment must be completed within 7 days.

PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES.

Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment.

Shipping:

We Ship to Worldwide.

Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.

We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address.

Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delived). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delived)

Items are shipped via China Post Air Mail.

Guarantee:

Good Good quality. Buy with confidence!

If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.

Not accept returning of electronic components.

Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.

We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.