Thank you for choosing SCLED for your mains dimming needs. SCLED is a transistor based 230v mains dimmer especially designed with todays complex loads in mind. SCLED is selectable to support leading or trailing edge mains phase cut dimming on a channel by channel basis and is suitable for dimming 230v LED, electronic leading and trailing edge transformers as well as incandescent and mains dimmable compact fluorescent loads. It is not suitable for wire wound transformers. Always refer to the lamp and dimmer manufacturers advice and instruction sheets before use.
SCLED has been extensively tested on a wide range of brands of mains 230v powered LED fittings which are advertised as dimmable. The following table summarises the findings from those tests. We are continuously updating our records so please go to www.ilight.co.uk/scled to review the latest available information.
Make Model Style
Auraglow 7W Energy Saving LED Bulb
Aurora AU-CNDE1404
AU-R63E2785/27
AU-GLSB2208
A2-DGU1006
AU-DGU1060W/30
AU-DGU1085/40
AU-GU102404
AU-DGU106/40
Bell
AU-P16GU3980
AU-P16GU4085
AU-P30E2712
AU-P38E2721
04411 18W AR111 GU10 Dimmable
05131 & 05132 Intensity GU10 LED 7W
EcoSpec "Linear INT 21W"
Eminent EM5920 7W Professional LED
Enlite
Future
Designs
Halers
05133 & 05134 Intensity GU10 LED 8W
05136 & 05137 Intensity GU10 Mini 5W
EN-DGU1006/40
BEEM
H2 Dim (EvoLED)
IBL Alume 2104. 1324
Alume 2105. 1322
Alume 2144. 1327
JCC
Kosnic
Ledon
Fireguard (JC94172)
PowerSpot KTC06DIM 6W
5W GU10 DIM
Lucent LUCLED50-42-22 + Harvard Drivers
Megaman LR1206dDGv2-WFL-GU10-2800K
Osram LED Superstar PAR16 advanced
Parathom PAR 16 advanced
Fitting
Fitting
Fitting
GU10
GU10
Fitting
GU10
PAR16
PAR 16
GU10
PAR16
(GU10)
PAR16
PAR16
PAR30
PAR38
AR111
GU10
GU10
Candle
E27
GLS
GU10
GU10
GU10
GU10
GU10
4ft tube
E27
GU10
Fitting
Fire rated
IP65
Fitting
Leading
Edge
Dimming
Range (UP)
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
20-90
24-42 **
2-100
2-100
8-70
6-50
10-60
3-70
1-100
25-100
15-100
20-60
3-73
20-72
17-73
27-100
15-74
√
√
√
√
√
√
√
√
√
√
√
√
√
√
20-94
15-75
10-100
9-90
5-90
11-86
24-74
5-90
5-90
14-50
19-72
16-74
9-100
24-72
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Trailing
Edge
√
√
√
9-90
9-25 **
1-100
2-100
2-15 **
3-20 **
2-32 **
2-20 **
5-66
5-45
20-72
7-64
3-90
7-78
12-41
5-90
5-90
3-80
16-78
14-82
9-63
1-80
Dimming
Range (UP)
1-100
17-100
2-50
2-35
15-35
23-85
30-100
15-73
12
20
20
12
20
12
Max Per
Channel tested
12
12
12
12
12
12
12
12
12
12
12
10
12
20
4 (Limited no supplied)
12
10
10
12
12
2 (Limited no supplied)
3 (Limited no supplied)
4 (Limited no supplied)
12
12
12
Table continues over the page
√ = Recommended * = Minimum of 2 lamps are required ** = Lamp offers a very compressed dimming range

Make
Philips
Robus
Tamlite
Toshiba
Model
Master LEDspot MV DimTone 8-50W+
Master LEDspot DimTone MV 7-50W
Master LEDbulb 8-40W GLS
Master LEDbulb 8-40W
Master LEDbulb D 17-75W
Master LEDbulb D 17-75W
Master LEDspotMV D 12-75W 2700K
PAR30S
Master LEDbulb D 12-60W
Master LEDbulb D 12-60W
MASTERLED CANDLE D4-25W E14W -
WB35FR
RF9LED
Starlite TLED-666 9W downlight
E-CORE LED 6.5W
E-CORE LED 8.5W
Style
GU10
GU10
B22
E27
B22
E27
PAR30
B22
E27
Candle
Fitting
IP65 DL
GU10
GU10
Leading
Edge
Dimming
Range (UP)
√
√
√
√
√
√
√
√
√
√
√
√*
√
√
14-100
4-100
3-100
2-100
5-90
5-85
8-100
5-90
5-90
5-80
30-85
3-100
30-100
1-80
√ = Recommended * = Minimum of 2 lamps are required ** = Lamp offers a very compressed dimming range
Trailing
Edge
√
√
√
Dimming
Range (UP)
12
7
7
10
12
Max Per
Channel tested
12
12
13-87
5-100
1-80
10
10
12
5 (Limited no supplied)
12
12
12
All tests were conducted using standard versions of manufacturers lamps – versions were current at the time of test. All results are approximate and indicative only. Always follow the manufacturer’s advice on dimming method and maximum numbers of lamps per circuit
( often referred to as derating advice).
Note: dimming performance over the dimming range may not be linear and varies greatly between lamp types and manufacturers – mixing lamps in an application will produce variation in performance. The stable dimming range figure (3 - 73 for example) refers to the level setting on the dimmer. The value of 73 in this case shows the lamp has reached maximum output at 73% on the dimmer and minimum output at 3% on the dimmer.
These test results only apply to lamps used with SCLED from iLight.

Can I mix leading and trailing edge lamps on the same dimmer channel?
No – you must set each individual dimmer channel to be either leading or trailing edge performance. Mixing leading and trailing edge lamps on the same dimmer may lead to performance problems and even lamp failures through using the wrong setting. However, you can mix LE or TE channel assignments on the same SCLED unit – as channels are assignable either LE or TE on a channel by channel basis.
Can I mix lamps from different manufacturers on the same circuit ?
SCLED is able to handle this but it is not advised as the dimming performance of each lamp will vary for the same level and therefore it is very difficult to balance the lamp levels. You must never mix leading and trailing edge dimming lamps on the same dimmer circuit.
My Lamp says it is trailing edge but it seems to work on leading edge? (or vice versa)
Whilst it is true that some lamps will dim using leading or trailing – ALWAYS follow the manufacturer’s recommended dimming technique.
Why do I need to derate the circuit if the circuit is rated at 5A?
SCLED capacity is 5A maximum on any individual channel if the load is incandescent ( ie resistive). When dimming LED, mains dimmable compact FL (not those dimmable using DSI, 1-10V or DALI) and dimmable transformer loads, also, inrush currents should be taken into account, as they can rise dramatically if using capacitive designs. As a consequence mains rated LEDS have to be treated in the same way as
Metal halide and mains dimmable fluorescent loads and a de-rating applied to the channel. Many manufacturers publish de-rating advice or maximum numbers of lamps per circuit and this advice should always be heeded as operating outside these guidelines may cause significant problems. Typically it can be as high as 90% de-rating so a 5A channel becomes 0.5A – still enough to handle quite a lot of lamps but significantly less than might be first expected. Note - Metal Halide and loads with wirewound/Magnetic transformers should not be used with
SCLED.
What if my lamp or ballast says it is DALI, DSI, 1-10v or DMX dimmable?
These types of dimmable lamps use an ELV dimming protocol rather than phase cut methods for dimming. You will need to choose another product from the iLight range which can deliver the necessary protocol dimming:
SCH type source controllers for DALI, DSI and 1-10v.
SCD type source controllers for DMX dimming.
What if I can’t find the lamp I am thinking of using in the look up table?
Whilst we endeavor to test and document as many as we can – new dimmable LED lamps are being released to the market all the time – so if you can’t find the model you are looking for then do contact us at: ilightsupport@cooperindustries.com
and we will be happy arrange a time to asses your lamp/fitting for adding to our records.
What if the lamp dims to a low level but comes on at a higher level only when I dim up?
This phenomenon is known as hysteresis and is common to some lamp designs – using SCLED and setting a higher minimum level can equalize the on and off points. We can even write simple sequences at commissioning that allow the lamp to be energized to a higher level at switch on and then dimmed down to the lower level.
What if the lamp flickers at low levels of dimming?
This is sometimes observed in some lamps when they dim beyond their stable dimming range and can be cured by adjusting the minimum dim level for the SCLED dimmer channel.
20 Greenhill Crescent, Watford Business Park,
Watford, Herts, WD18 8JA. UK
T: +44 (0)1923 495496 F: +44 (0)1923 228796
E: enquiries@iLight.co.uk www.iLight.co.uk
E&OE. Cooper Controls reserves the right to make changes to equipment and prices without prior notice. © Cooper Controls Ltd.
LED LAMP TEST INFO Rev2 - 1013