Exclusive Banker's Lamp with Honey Shade
See this stunning and exclusive Banker’s Lamp, available only at Inspired.
A perfect companion for any desk, this classic yet funky Honey Shade version of the popular Banker’s Lamp will add style to any contemporary study or office.
Finished in solid hand waxed brass and glass not a cheap imitation version.
Handmade to order, and worth every penny!
The Energy Saving Trusts Energy Saving Recommended accreditation, CFLs have to emit the same warm light level as GLS bulbs:- between 2,600 and 2,800 kelvin.
CFL Lamp
CFL do not need to be kept switched on for longer than a normal GLS bulb as they do not consume any greater energy during start up and run very efficiently immediately after the first 2 or 3 seconds.
These are cap types of common bulbs.
The previous standard in Britain before imperialisation was the bayonet cap, now referred to as LBC or the european standard, B22 (Bayonet 22mm diameter).
The European Standard follows on from this standard as follows;
E refers to Edison, followed by the mm diameter.
ES = Edison Screw cap, or E27 = Edison 27mm
SES = Small Edison Screw cap, or E14 = Edison 14mm
The latest generations of CFL lamps offered by the major manufacturers are no longer very large. In many cases, they are even slightly smaller than their GLS equivalent and with the new classic shapes looking almost the same as GLS bulbs.
CFL lamps are now available in almost all cap/base types, such as E27, E14 etc.
CFL in the lighting industry refers to Compact FLuorescent lamps (bulbs).
Compact in size, normally twisted spiral shapes, to fit in confined spaces in some fittings.
Rattle Noise in Fluorescent TubesThe rattle noise in the tube is normal, this rattle is due to catalytic pellet inside the glass, a solid state zinc alloy catalyst that delivers even better, more consistent performance. It also makes the lamp the most environmentally friendly on the market.
Both switches and dimmers have maximum wattage ratings, i.e. the total wattage to be used by the switch/dimmer (eg 1x 10 arm light rated at 20 watt each = total 200 watts) and should NOT exceed this. Some mains voltage Halogen lights require dimmers that run at double their total wattage. Please consult a qualified electrician for further advice.
A good rule of thumb is normally equivalent to 1 Watt per Led, so for example if the light contains 20 LEDs it will give as much light as a 20watt bulb
Some wall mounted switches will emit an annoying hum when turned to their lowest setting. This is quite normal but will vary in intensity between the type of dimmer and the type of lighting unit being dimmed. Reducing the bulb wattage may be a solution but trying a different dimmer switch may also alleviate the problem.
If you hook up a really cheap dimmer switch, you may notice a strange buzzing noise. This comes from vibrations in the bulb filament caused by the chopped-up current coming from the triac.
If you know how an electromagnet works then you know that electricity flowing through a coiled length of wire generates a substantial magnetic field, and fluctuating current generates a fluctuating magnetic field. If you know how a light bulb works then you know that the filament at the heart of a light bulb is just a coiled length of wire. It makes sense, then, that this coiled filament becomes magnetic whenever you pass current through it, and the magnetic field fluctuates with the AC current.
Normal undulating AC current fluctuates gradually, so the magnetic field does, too. The chopped-up current from a dimmer switch, on the other hand, jumps in voltage suddenly whenever the triac becomes conductive. This sudden shift in voltage changes the magnetic field abruptly, which can cause the filament to vibrate — it’s rapidly drawn to and repelled by the metal arms holding it in place. In addition to producing a soft buzzing sound, the abruptly shifting magnetic field will generate weak radio signals that can cause interference on nearby TV’s or Radios
Better dimmer switches have extra components to squelch the buzzing effect. Typically, the dimmer circuit includes an inductor choke, a length of wire wrapped around an iron core, and an additional interference capacitor. Both devices can temporarily store electrical charge and release it later. This “extra current” works to smooth out the sharp voltage jumps caused by the triac-switching to reduce buzzing and radio interference.