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Electric Bulb
The Electric Bulb (Product Code: SCL-647/072) is a 60 watt incandescent lamp of the traditional filament type, giving white light and suitable for indoor and outdoor use. In the laboratory it is the indicator lamp of the conductivity test — its brightness shows at a glance how well a solution conducts — and its glowing filament is a clear example of the heating effect of electric current. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, together with the holders, switches and wire needed to use it.
Specifications
| Parameter | Detail |
|---|---|
| Light type | Incandescent |
| Construction | Filament (old type) |
| Wattage | 60 W |
| Light colour | White |
| Suitable for | Indoor and outdoor use |
Typical Use
Fitted in a holder in series with two electrodes, the bulb lets a class compare solutions: full brightness with salt solution or a dilute mineral acid, a faint glow with a weak acid, and no light at all with distilled water or sugar solution. Because a filament lamp brightens gradually as current increases, differences between strong and weak electrolytes are easy to see. Physics teachers also use it to show that a current-carrying filament becomes hot enough to emit light, and as a radiant heat source in the experiments that go with a heat energy science kit.
An incandescent bulb runs hot. Switch off and allow it to cool before removing it from the holder, handle it with dry hands, and position it so that liquids cannot splash onto the hot glass, which can crack on sudden cooling. Mains-powered demonstrations should always be operated by the teacher.
Supplier
This bulb is supplied by Jain Scientific Equipments Private Limited, an Ambala, Haryana company that trades as ScienceLab and equips educational laboratories in India. The company profile explains more about us.
Related Laboratory Equipment
Items used with the bulb in demonstration circuits:
- Bulb Holder Hanging Type — hermetically sealed holder made for the conductivity demonstration
- Bed Switch — on/off control for the lamp circuit
- Insulated Electric Wire (Copper) — connects the bulb, switch and electrodes
- Equipment for Electrical Conductivity of Electrolytes — a complete apparatus for the same topic
Browse more demonstration items in the Chemistry Lab category.
Frequently Asked Questions
What wattage is the bulb?
It is a 60 W incandescent filament bulb giving white light.
Why use a filament bulb rather than an LED for conductivity tests?
A filament lamp glows progressively brighter as current rises, so weak and strong electrolytes produce visibly different brightness. That graded response is what makes the comparison work in class.
Which cap or base does it have?
The cap type is not stated in our current listing. Contact us with your holder type and we will confirm a matching bulb.
Can it be used outdoors?
The listing describes it as suitable for both indoor and outdoor use.
Is there a warranty on bulbs?
Bulbs are treated as consumables; any warranty terms are confirmed at quotation stage, so please check with us before ordering.
Can bulbs be included in a larger lab supply order?
Yes. We supply schools, colleges and distributors in India and international markets, and bulbs can be quoted along with holders, switches and wire.
Request a Quote
To price a quantity of Electric Bulbs, contact us or add them to the enquiry cart.
Last updated: 24 September 2026
