Bulbs 2.5V Screw Base Pack of 100-1
Bulbs 2.5V Screw Base Pack of 100-1
MTA Essentials

Bulbs 2.5V Screw Base Pack of 100

$77.00
$77.00
RRP $96.25
Or 4 payments of $19.25 with
Add items to a quote for bulk pricing, approvals, or purchase orders.

SKU: EVDC50163

MPN: DC50163

100 bulbs at 70c each, because students blow them

100 x 2.5V screw-base bulbs.

Every circuit lesson ends with some bulbs dead. A student wires two cells in series into a 2.5V bulb, it flares and goes, and that is a perfectly good lesson about voltage - but only if you have another bulb. Buying these in tens means rationing them; buying a hundred means the lesson can be repeated, which is the only way a class of thirty actually learns anything about circuits.

At 70c a bulb, a whole class blowing one each costs about $21, which is the right way to think about consumables in a science budget.

These are 2.5V screw base. They fit standard primary and lower-secondary lamp holders. They do not fit the 12V bayonet lamp on a stand - different voltage, different fitting.

Often ordered together

  • 100 bulbs, 2.5V, screw base
  • 70c a bulb
  • Enough that students can blow one and try again
  • Fits standard screw-base lamp holders
  • Does NOT fit the 12V bayonet lamp on a stand
  • Whole-class circuit building
  • Series versus parallel brightness comparisons
  • Resistance and conductivity investigations
  • DIY torch projects
  • Restocking a depleted science cupboard

Shipping

Shipping is kept simple with flat rates for selected areas and free shipping where applicable. Large, bulky, rural or out-of-area orders may require additional freight, and our team will contact you if this applies. For a more specific estimate, simply add this product to a quote or visit our shipping page.

Delivery Times

Melbourne, Sydney, Brisbane, Adelaide — 1 to 3 business days
Perth — 1 to 5 business days
Regional & Outer Areas — 3 to 7 business days

Returns

If you have questions about returns, please contact us or visit our returns page for full details.

Specifications

Contents: 100 bulbs

Voltage: 2.5V

Base: screw (Edison-type miniature)

Compatible with lamp holders, switches and motors in the MTA circuit range

Not compatible with the 12V SBC lamp on a stand

Brand: MTA Essentials

Model: DC50163

Barcode: none supplied

Always Here to Help

Based around the Gold Coast, our customer support team brings deep office supplies knowledge, with most members having more than 10 years of industry experience. We are more than customer service agents. We are experienced office supply experts ready to help. Contact us below.

Contact Support Read all FAQs

FAQs

No - bulbs only. You need screw-base holders, which are a separate line.
2.5V, which is roughly two 1.5V cells in series allowing for losses. One cell gives a dim glow; three will kill them, sometimes usefully.
No. That one is a 12V small bayonet fitting. These are 2.5V screw base. They are not interchangeable in either direction.
Rarely. A single class of thirty doing circuits will get through a handful in a lesson, and the pack does not go off. Most schools find a hundred lasts a couple of years.
Yes. They are small glass, so a dropped one can break, but at 2.5V there is no shock risk and no heat worth worrying about.

Shipping & Delivery

Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.

If you need to make a change to your order, please contact our team as soon as possible. Once an order has been processed or dispatched, changes may no longer be possible. You can contact us through our Contact Us page for assistance.

Mega Office Supplies ships orders Australia wide and occasionally internationally. The best avenue would be to contact us so we can customise a specific quote for you. Please note that associated international duties, taxes and levies will be the responsibility of the customer.

Returns, Refunds & Replacements

Mega Office Supplies accepts change-of-mind returns for unopened and unused products within 14 days from the invoice date, provided the item is returned in its original packaging and in resalable condition. Original shipping costs are not refundable, return shipping is the customer’s responsibility, and a restocking fee may apply depending on the product type and supplier. Some items, including electronics, assembled or installed furniture, food, beverages, medicines, custom-made products, and certain bulk or special-order items, are not eligible for return unless required under Australian Consumer Law.

If your order arrives faulty, damaged, or incorrect, please contact Mega Office Supplies as soon as possible. Where required under Australian Consumer Law, a repair, replacement, or refund will be offered. In these cases, Mega Office Supplies will cover reasonable return shipping costs, and photographic evidence may be requested to help process the claim. Items should be reported within a reasonable timeframe after delivery.

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