Lighting FAQ’s

What does Dual Mount mean?

Products shown with a dual mount option can be adapted and the chain removed allowing the fitting to sit flush to the ceiling. Instructions on how to do this are provided with each dual mountable fitting but we do still recommend that the work is carried out by a qualified electrician.

How do I know if a light fitting is low energy?

All fittings that take dedicated low energy lamps will be marked as low energy. You may find other fittings are labeled suitable for low energy. This means you can replace the lamps with a retro fit low energy lamp.

What is the difference between Wattage and Lumens?

You will often find that newer lamps give a lumen value on the packaging. New legislation requires manufacturers to include this information as a way to help the customer understand the ‘true’ lamp brightness. Traditionally wattage has been used as a way to measure the lamps brightness (i.e. a 60watt lamp is know to be brighter than a 40watt lamp.) With the introduction of new low energy lamps this is no longer the case. See the table below for more information on the different lamps and their approximate lumen value. Please be aware this does differ depending on the lamp manufacturer

LUMENS

INCANDESCENT
LAMPS

HALOGEN
-30% SAVING

COMPACT
FLUORESCENT

LED

UP TO 200

25W

18W

5 – 7W

 

300-400

40W

28W

9W

3-5W

500-700

60W

42W

11W

3-5W

800-1000

75W

52W

15W

 

1100-1300

100W

70W

20W

 

LED lamps are still very difficult to categorize, as there are so many manufacturers and new types of LED lamps now available. It is hard to give a useful lumen value to a lot of LED lamps, especially GU10 replacement LED’s as the beam angle can considerably change the perceived light provided.
We usually suggest to our customers that they take a lamp to try before committing to purchasing a number. Initially LED lamps can be considerably more expensive to purchase than an incandescent or halogen lamp but can save money in the long run on electricity fees due to low wattages and long lifespan.
LED’s also come in a variety of different colour temperatures. This also needs to be considered before purchasing as it can affect the whole feel of a room. We are always happy to discuss further our LED products so please feel free to email us at info@garvagh-lighting.com or phone us on 0161 429 8429. Alternatively, if you are in the area, call into our showroom for a chat and a demonstration of different LED’s available.

Are LED lamps dimmable?

Some LED lamps are dimmable but you must make sure that this is stated on the lamp information. If you try to put non-dimmable LED’s onto a dimmer switch you may find the lamp works for a while but the lamp life will be shortened considerably. Dimmable LED lamps also require a specific dimmer module. If purchasing your LED lamps from us we can supply a suitable dimmer. If you have purchased the lamps from elsewhere we always suggest you check with the lamps manufacturer what dimmer is required.

What’s the difference between Low Voltage and Low Energy?

Energy usage is measured in watts. Your energy bill probably shows how many kilowatts you have used, (a kilowatt is 1000 watts.)

Low energy fitting generally run at full mains voltage 230volts and have a lower wattage rating compared to an incandescent lamp. I.e. a 9W lamp will give the equivalent of 45watts whilst only consuming 9watts of power.

Low Voltage fittings mostly run at 12 volts so have a transformer to reduce the mains electricity supply from 230v to 12volts. This doesn’t affect the wattage though. A 50w 12volt lamp will give 50watts of light but will still consume 50watts of power and therefore not low energy.