A standard cooling fan is essentially a bladed DC motor. By varying the voltage input across the acceptable range for a fan, the speed of the fan will increase (to added voltage) and decrease (to reduced voltage); a faster fan means more air moved and thus a higher heat exchange rate.
Contact them toll-free from a Vodacom cellphone by dialing 111. Contact them toll-free from a Telkom phone by dialing 0800-111-234. Note: Telkom toll-free numbers are generally NOT toll-free when dialed from a MTN/Vodacom cellphone.
Vodafone Customer Care Number : 9884098840 / Vodafone Care on +91 9820098200. The above mentioned number can be dialed from any phone at any time. How to Reach Vodafone Customer Care: From your Vodafone mobile number, you can dial 198/111(chargeable) and then select 1 for language and then 7 to speak to Vodafone Customer care executive.