INDUCTION LAMP TECHNOLOGY
1.What is an induction lamp?
The basic technology for an induction lamp is not particularly new. Essentially, an induction lamp is an electrodeless fluorescent light. Without electrodes, the lamp relies on the fundamental principles of electromagnetic induction and gas discharge to create light. The elimination of filaments and electrodes results in a lamp of unmatched life. Lasting 100,000 hours or 25 years, this system can outlast 100 incandescent,5 HID, or 5 typical fluorescent lamp changes.
HOW DOES INDUCTION SAVE ENERGY?
2.How does an induction lamp work?
2.1 External Inductor Lamps External magnetic induction lamps are essentially fluorescent lamps with electromagnets wrapped around a section of the lamp tube. High frequency energy from the electronic ballast (generator) is sent through wires that are wrapped in a coil around the ferrite inductor, creating a powerful magnet. The induction coil produces a very strong magnetic field that travels through the glass and excites the mercury atoms in the interior, which are provided by a pellet of amalgam (a solid form of mercury). The mercury atoms emit UV light and, just as in a fluorescent tube, the UV light is up-converted to visible light by the phosphor coating on the inside of the tube. The system can be considered as a type of transformer, where the inductor is the primary coil and the mercury atoms within the envelope/tube form a single-turn secondary coil. 2.2 Internal Inductor Lamps
In a variation of this technology, Internal Magnetic Induction Lamps use a light bulb-shaped glass lamp, which has a test tube-like reentrant central cavity. This cavity is coated with phosphors on the interior and filled with inert gas and a pellet of mercury amalgam. The induction coil is wound around a ferrite shaft, which is inserted into the central cavity. The inductor is excited by high frequency energy provided by the external electronic ballast (generator), causing a magnetic field to penetrate the glass and excite gases.
Visible Light Uv Light Glass Envelope/Tube Phosphor Coating Inert Gas Fill Magnetic Field Inductor Assembly Induction Coil Inert Gas Fill Wires to Connect Ballast Electron Phosphor Coating Inside Lamp Glass Envelope/Tube Uv Light Visible Light
400W MH
200W Induction lamp
How does a 200W induction lighting system replace a 400W metal halide lighting system and provide significantly better performance and lighting? The answer: lies in what's pupil lumen:
The effect of lighting on people's vision and psychological well-being has been a subject of much study and discus sion for years. Describing light in terms of "lumen output" and measuring it by "foot candles" on a work plane has been the traditional ways of defining how much light isrequired to perform a variety of tasks. However, recent studies havehave re-examined these methods. The "color rendering index" (CRI) and correlated color temperature (CCT) describe the quality of the light (relating to how true colors appear compared to under a noon north sky on a clear day). As lighting technology evolves into vari ous types and colors, simply measuring the lumens provides an inadequate basis for predicting how well people can see. In bright lighting, our pupils contract, allowing more detail to be perceived, while depth of field and perceived brightness also increases. In low light, our eyes dilate to allow in more light. Sam Berman, formerly with the Lighting Systems Research Group at Lawrence Berkeley Laboratory and a major supporter of the importance of the P/S ratio in lighting selection, developed a conversion factor that applies the P/S ratio to lumen output of various light sources. The ratio expresses the effective lumens the eye will perceive for vision based on the size of the pupil and the effect on vision (see Table 1 below). Some lighting, such as a low-pressure sodium lamp, loses most of its output using this method. A high-quality Induction lamp, on the other hand, maintains its output throughout nearly its entire lifetime.
3. Features of induction lamp
* * * * * * * * * * * * * * Long Lasting: 100,000 hours High luminous efficacy: 65-85 LM/W Excellent Color Rendition: CRI> 80 Wide color temperatures: 2700K-6500K Superior power factor: > 0.96 Excellent lumen maintenance: 20,000 hours > 90% Wide working voltage: 120-277V, 208-347V, 12/24V DC Low EMC interference frequency: 250KHz Reliable instant start up: -40 Low total harmonic distortion: THD<10% No glare; soft light Low level of harmonic content: ECO-friendly Low mercury content Environmentally friendly
Visible Light Uv Light Glass Envelope/Tube Phosphor Coating Inside Envelope/Bulb Inert Gas Fill Induction Coil Magnetic Field Inductor Assembly Reentrant Glass Tube Mercury Amalgam Wires to Connect Ballast Base/Heat-Sink
Light Source
Low-pressure sodium (SOX) High-pressure sodium (35W) High-pressure sodium (150W) High-pressure mercury Metal halide (at 2000hrs) Clear metal halide (Na/Sc) Standard incandescent Tungsten halogen 5000K YML induction Lamp(200W)
Conventional Lumens Per Watt
165 55 100 40 70 90 15 22 85
Correction Factor (S/P Ratio)
0.38 0.57 0.76 0.86 1.14 1.49 1.26 1.32 1.96
Pupil Lumens Per Watt
63 31 76 34 80 126 19 29 167
4.Lumen maintenance of induction lamp
YML Induction lamp(Power:200W)Lumen maintenance curve:From 0-50KH
95
Lumen maintenance rato
90
85 83
Table calculations by Berkley Labs . Actual selection of induction lamp wattage and type will vary with installation and user requirements.
81
80 70 60
79.8
To calculate visual effective lumens, see : Calculation table. Note: The data in green is the Conventional lumens per watt. The data in red is the (S/P) Ratio.
Type Initial Lumens Lumens (2000hrs) Lumens (5000hrs) Lumens (10000hrs) Lumens (20000hrs) 2pcs MH already broken 26656 Lumens (100,000hrs) 10pcs MH already broken 21658
50 40 30 20 0 2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 22 24 26 28 30 32 34 36 38 40 41 42 43 44 45 46 47 48 49 50 5152 Time:KH
400 MH
400*85*1.49=50660
400*70*1.08=30240
27216
Broken
200 Induction
200*85*1.96=33320
200*80*1.96=31360
29988
28322
Induction VS Other Light Sources
Comparison Item LAMP LIFE (Hours) LIGHTING EFFICIENCY (Lm/W) CRI S/P RATIO COLOR TEMPERATURE HOT RESTART MERCURY LUMEN MAINTENANCE Resource Management Induction Lamps 60k-100k 65-90 >80 1.46-2.25 Full Range INSTANT Low LED 30k-50k 40-65 >70 1.96 Limited Range INSTANT N/A MH 10k-15k 60-110 >70 1.49 Limited Range DELAY Low-High HPS 15k-24k 60-120 >20 0.62 Limited Range DELAY Low-Medium
How does induction save money?
EFFECT COMPARISON
Reference Graph Below Reference Table Below
COMPARISON
Induction Lamps Induction lamps can replace most conventional light sources in functional lighting fields. The potential market size is substantial. In addition, incandescent lamps will be phased out in many countries over the next few years, so there will be a high need for energy-saving light sources. With the development of large-scale production, Induction lamps cost will be significantly reduced. Induction lamps can reduce up to 50% less energy consumption than LED, because Induction lamp efficacy is 30% higher than LED, while the lumen depreciation rate is lower. Can be used for industrial, commercial, road, tunnel, bridge, garden and park, agricultural, and advertising lighting. Induction Lamps can be widely applied for diversified functional lighting applications. They are easily and quickly commercialized around the world. ENERGY CHARGE SAVING TOTAL POWER FOR THE WHOLE LIGHT ELECTRIC ENERGY CONSUMPTION PER HOUR ELECTRIC ENERGY SAVING PER HOUR 1. 2. 3. 4. 5. 6. 7. 8. Wattage: 15W~400W Efficacy:> 80 lm/W CRI: > 80 Ra CCT: 2100K~6500K, all ranges Lumen depreciation5% at 2000hrs Lifetime> 100,000 hrs Minimal heat output Customizable fixture ENERGY CHARGE SAVING PER HOUR(0.11/kwh) ENERGY CHARGE SAVING PER DAY(12hrs/days) ENERGY CHARGE SAVING PER YEAR(300days/y) ENERGY CHARGE SAVING FOR 5 YEARS(300days/y) WORKING HOURS FOR THE INDUCTION LIGHT 100,000hrs 0 None 0 0 US$30,000.00 Lnduction Lighting System Model High Bay-200W Quantity 100 MH Lighting System Model High Bay-400W Quantity 100
Market Potential Size
Before
400W MH
After
200W Induction Lamp
Economy
Energy
Application
210*100=21,000 21KW 23KW US$2.53 US$30.36 US$9,108.00 US$45,540.00
440*100=44,000 44KW
Functional Lighting Application
Technical Specifications
8000hrs 2.5 USD70 2.5*100*70=17,500 2.5*50*100=12,500
100 95 % rated lumen output Lamp Replacement at 65%/ EOL 90 85 80 75 70 65 60 55 50
10 YEARS COST SAVING
REPLACEMENT TIMES FOR LAMP & BALLAST PER 5 YEARS
ESTIMATED LUMEN MAINTENANCE
MAINTENANCE COST SAVING
COST OF LAMP & BALLAST EACH SET TOTAL CHARGE OF REPLACEMENT FOR LAMP & BALLAST LABOR COST 5 YEARS MAINTENANCE COST
MH
HPS HIGH QUALITY LED
YML INDUCTION
FLUORESCENT
5 YEARS COST SAVING
US$45,540 + US$30,000 = US$75,540
US$151,080.00
10,000
20,000
40,000
60,000
80,000
100,000
Hours of Operation
