can you use these 10w led bulbs in wall fittings that say 60-w max?

Yes. I'm not an electrician but the 60w max is due to the heat generated. The LED bulbs generate less heat as they run at a lower power and are more efficient.

How wide are these bulbs?

Width is: 6 cmHeight is: 11.2 cmWidth is exactly same as incandescent bulb, however the length is slightly larger (by 8 mm)comparison (right is LED) : http://imgur.com/Q5o9gdT

are they bright instantly or need warming up

They are bright instantly so no warm up. A huge improvement. Don't know if they work on dimmer switches as yet.

What is the operating range voltage of these lamps. Im seeking something with a wide voltage range as the power supply is unstable

The nominal voltage is 240v. Generally electronic devices will function over quite a large voltage range BUT they do not like spikes.Having said that;- 2 out of the 6 led bulbs I bought have failed after only a few weeks, despite a claim of up to 30,000 hours service life.

Product Dimensions	12 x 6 x 6 cm; 170 Grams
Finish types	Frosted
Warranty description	2 warranty.
Batteries required	No
Item weight	0.17 Kilograms

Long Life Lamp Company

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