Visa Electron is a debit card available across most of the world, with the exception of the USA, Canada and Australia. The card was introduced in the 80s and is a sister card to the Visa Delta card.
Visa Electron cards are usually only issued to people with unproven credit records, low income, or minors.
In different regions, the card is issued with different specifications. For example, one bank may issue it as a debit card, while another may issue it as a credit card. It is most commonly issued as a debit card. In this case applying for a credit card requires the applicant to present some proof of regular income (such as an employment certificate) or financial assets invested elsewhere.
In addition to debit facilities, the card also allows the holder to withdraw cash from ATMs.
In the UK, the card is not as widely accepted as the sister Visa Delta card. In some countries, like Australia, retailers are required to accept the card as part of Visa's Accept All Cards Policy, which also applies to the normal Visa Debit card, although the card isn't available locally.