Lamp Lumen Output | Lighting Terms and Facts | Luminous Efficacy | Luminaire Efficiency | Brightness vs Height | IP Ratings | Features | Comparison

Lamp Lumen Output

Mercury Vapour

		Lumens Output	Lumens Per Watt
55751	80w High Pressure M.V.	3,800	47.5
55752	125w High Pressure M.V.	6,200	49.6
55753	250w High Pressure M.V.	13,000	52.0
55854	400w High Pressure M.V.	22,700	56.8
55769	250w Mercury Blended	5,600	22.4
55768	500w Mercury Blended	14,000	28.0

High Pressure Sodium

		Lumens Output	Lumens Per Watt
55800	70w SON/E & INT Ignitor	5,600	80.8
55801	150w SON/E	14,000	93.0
55804	150w SON/T	14,500	97.0
55802	250w SON/E	25,000	100.0
55805	250w SON/T	27,000	108.0
55803	400w SON/E	47,000	118.0
55806	400w SON/T	48,000	120.0
55830	1000w SON/T	130,000	130.0

Metal Halide

		Lumens Output	Lumens Per Watt
55942	70 Coated Elliptical	5,300	76.0
55944	100 Clear Elliptical	9,000	90.0
55828	150 Clear Tubular	14,250	95.0
55825	250 Clear Tubular	18,000	68.0
55820	400 Clear Tubular	38,000	76.3
55826	1000 Clear Tubular	81,000	81.0
55821	2000 Clear Tubular - External	180,000	90.0
55822	2000 Clear Tubular - Internal	180,000	90.0

Low Pressure Sodium

		Lumens Output	Lumens Per Watt
55841	18w SOX	1,800	100.0
55842	35w SOX	4,800	137.1
55843	55w SOX	8,000	145.5
55844	90w SOX	13,500	150.0
55845	135w SOX	22,500	166.7
55846	180w SOX	33,000	183.3

PL Energy Efficient Lamps - Two Pin Type

		Lumens Output	Lumens Per Watt
55909	9w	600	66.7
55912	11w	900	81.8
55924	13w	900	69.2
55928	18w	1,200	66.7
55932	26w	1,800	69.2

Notes

For comparison purposes, household incandescent globes have an output of approximately 12 lumens per watt.
All lamp types are 230v, with the exception of the 2Kw MH, which is 380v
The efficiencies quoted are those achieved with our range of lamps lamps. The outputs of other lamps may differ.

Lighting Terms and Facts

Luminous Flux unit: lumen(lm)

Luminous flux of luminous power is the measure of perceived power of light. It differs from radiant flux, the measure of the total power of light emitted, in that luminous flux is adjusted to reflect the varying sensitivity of the human eye to different wavelengths of light.

Illuminance unit: lux(lx)

Illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of the intensity of the incident light, wavelength weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. Luminous emittance is also known as luminous exitance.

Luminous efficacy unit: Im/W

Luminous efficacy is a property of light sources, which indicates what portion of the emitted electromagnetic radiation is usable for human vision. It is the ratio of emited luminous flux to radiant flux. Luminous efficacy is related to the overall efficiency of a light source for illumination, but the overall lighting efficiency also depends on how much of the input energy is converted into electromagnetic waves (whether visible or not).

Luminous intensity unit: cd

Luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a standardized model of the sensitivity of the human eye.

Colour temperature unit: K

Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing and other fields. The colour temperature of the light source is a determined by comparing its chromaticity with that of an ideal black-body radiator. The temperature (usually measured in Kelvin (K)) at which the heated black-body radiator matches the color of the light source is that source's colour temperature, for a lback body source, it is directly related to Planck's law and Wien's displacement law. Counter intuitively, higher Kelvin temperatures (5000K or more) are "cool" (green-blue) colours and lower temperatures (2700-3000K) "warm" (yellow-red) colours. Cool-coloured light is considered better for visual tasks. Warm-coloured light is preferred for living spaces because it is considered more flattering to skin tones and clothing. Colour temperature in the 2700-3600K range are recommended for most general indoor and task lighting.

Luminous Efficacy

	Alted 1W True White LED	Halogen	Incandescent Lamp	Energy Saving Bulb	T8 Flourescent Lamp	Mercury Bulb
Luminous Efficacy (Im/w)	50~80 (Tj=25°)	13.6~30	7~20	40~60	60~100	30~60
Power Efficacy (Ballast)	-	-	-	-	Traditional: 40~50%	Traditional: 40~50%
Fixture Efficacy	90%	50%	50%	50%	50%	50%
Actual Efficacy (Im/W)	45-72	5.4~12	2.8~12	16~24;	Traditional: 9.6~16	Traditional: 4.8~9.6

Luminaire Efficiency

The majority of applied light source are directional light source, during the conversion from non-direct to direct light source there will be a loss of around 40~60%.

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Brightness vs Height

IP Ratings

IP (International Projection) followed by two numbers, e.g. IP65.
The first digit in the rating is the projection against contact and foreign bodies.
The second digit in the rating is the water protection factor.

First Index - Foreign Bodies Protection, Solids:

	Protection against Human / Tool Contact	Protection against solid objects (foreign bodies)
0	No special protection
1	Back of hand, Fist	Large foreign bodies, diam. >50mm
2	Finger	Medium-sized foreign bodies, diam. >12mm
3	Tools and wires etc with a thickness >2.5mm	Small foreign bodies, diam. >1mm
4	Tools and wires etc with a thickness of >1mm	Granular foreign bodies, diam. >1mm
5	Complete protection, (limited ingress permitted)	Dust protected; dust deposits are permitted, but their volume must not affect the function of the unit.
6	Complete protection	Dust-proof

Second Index - Water Protection, Liquids:

	Protection against water	Protection from condition
0	No special protection
1	Water dripping/falling vertically	Condensation
2	Water sprayed at an angle (up to 15? degrees from the vertical)	Light rain with wind
3	Spray water (any direction up to 60? degrees from the vertical)	Heavy rainstorm
4	Spray water from all directions, (limited ingress permitted)	Splashing
5	Low pressure water jets from all directions, (limited ingress permitted)	Hose down, residential
6	High pressure jets from all directions, (limited ingress permitted)	Hose down, commercial. e.g. Ship decks
7	Temporary immersion, 15cm to 1m	Immersion in tank
8	Permanent immersion, under pressure	For use on Titanic recovery vehicle

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Features

75-85% power savings compared with incandescent and halogen lighting.
Patented Server Class thermal fin technology - twice the thermal efficiency of most other products.
Lasts up to 26 times longer than incandescent light.
Most efficient series of lighting for internal and external use.
RoHS compliant - no toxic material used - environmentally friendly.
Designed around IEC 60598 safety standards.
Cold light technology means no harmful UV or IR ray emissions - external lights do not attract insects.
Compatible with most standard lighting fixtures.
Choice of colours for optimum flexibility.

Comparison

	High-Power LED	Energy Saving Bulb	Flurescent Lamp	Incandescent Light	Halogen Lamp	High Pressure Mercury Vapor Lamp
Power consumption (Watts)	12	25	18	120	100	30
Luminous Efficacy (Im/w)	58	50	70	10	13	40
Luminaire efficiency (%)	90%	40-60%	40-60%	40-60%	40-60%	40-60%
Utilization Luminous Flux	630	625	630	600	650	600
Efficinecy (Im/w)	52	30	37.5	5.5	6.5	25
Chip Lifespan (hours)	50,000	5,000	8,000	1,200	2,000	2,000
Annual electricity (12 hours/day) Denmark electricity 0.3153 USD/KWH	US$24.9	US$52	US$41.6	US$281	US$239	US$62.4
Power required to compare to 100w Incandesent Light	10wW	18W	16W	100W	80W	22W
Traditional light power consumption as compared with LED power consumption	-	2 time	1.6 time	12.5 time	10 time	3.3 time
Annual emissions of carbon dioxide (kg)	50.2kg	104.7kg	83.6kg	565.8kg	481.9kg	104.7kg

Click here to download 'Features' PDF