The bulbs keep shorting. Any one else experience this?

Wiring four "identical" bulbs in series, to power from a 6V battery, is not entirely legitimate UNLESS you can be sure that the filament resistance of all bulbs is very nearly equal. Otherwise, the bulb with the highest resistance will burn out prematurely. You might mitigate this problem if you use four bulbs in series with a 4.5v supply; or five bulbs in series with a 6v supply. This will lower the current through the bulbs and hopefully their dissipation will stay within safe limits. You could also use a resistor in series with the bulbs. Calculating the value depends on accurately knowing the specs of the bulbs; do you trust this manufacturer's published specs? As a rough start, you might try one resistor (5 ohms, 1 watt) and four bulbs, all in series, with a 6v supply voltage. The resistor might get rather hot!

My lesson calls for #40 bulbs. Are these the same size? I don't see anything that says #40.

This is E10 screw mini bulb, the size is approx. 23 mm/ 0.9 inches in length, E10 mini bulb holder is about 30 x 11.5 mm/ 1.18 x 0.45 inch, please carefully check whether the product size is what you want before buying.

Are there any LED bulbs that can be used with this?

Are you looking for something to hold a small LED bulb like this? I don’t think these bulb holders will work with this sort of bulb.

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30 Pieces E10 Screw Mini Bulbs and Sockets Set, 1.5V, 0.3A | Warm White Light, Black Plastic Holder Base, E10 Screw Socket for Experiment Lighting, DIY Projects, Mini Light Bulb Set

Product ID: 256082252

Details

Brand
Honoson
Material
Metal
Color
Metallic and
Base Type
e10
Product Dimensions
0.45"W x

⚡0.3A current

💡1.5V output

📏Compact size

€ 18.00

Duties & taxes included

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Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

💡 Light Up Your Creativity with Every Experiment!

AMPLE SUPPLY - 30 pieces to keep your projects going without interruption.
SAFETY FIRST - Eye-friendly design ensures comfort during use.
QUALITY YOU CAN TRUST - Durable materials ensure reliability and safety.
VERSATILE APPLICATIONS - Perfect for school experiments and equipment inspections.
ILLUMINATE YOUR EXPERIMENTS - Bright warm white light for all your DIY projects.

This set includes 30 E10 screw mini bulbs and 10 E10 mini screw type sockets, designed for educational experiments and DIY projects. Each bulb operates at 1.5 volts and 0.3 amps, providing a warm white light that is safe for the eyes. The compact size makes them ideal for various applications, ensuring you have enough supply for all your needs.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 18.00

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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