Candle tubes come in many different sizes we hold the more common sizes found on standard style chandeliers and wall lights.
All of our diameter measurements are internal.
There are 2 main styles with drips or without both styles are in 2 materials cardboard and plastic.
The cardboard tubes have been tested to 650°C using a glow wire with no flame.
So using a 60w light bulb will be no problems.
Please find the certification here: https://drive.google.com/file/d/0B4fnAjwXx-i0NjlwLVVJZ3ZSSGs/view
24mm Diameter = B22 - Bayonet Cap | E14 - Small Edison Screw Lampholders