GRENLite™ s vs. Metal Halide Lamps (MHL)
Comparison Item |
GRENLite™ |
MHL (Metal Halide Lamps) |
Warranty |
Compact 5yrs Separate 10 yrs |
None |
Life Span |
Compact 60,000 hrs Separate 100,000 hrs |
6,000~20,000 hrs (Short lifetime because electrode works under high temperature up to 1200 ) |
Energy Saving Efficiency |
Excellent |
Lower |
Lumen Efficacy |
Photopic Efficacy: 150 Plm/W (Plm: Pupil Lumen) Traditional Efficacy: 80 Lm/W |
Photopic Efficacy: 110 Plm/W (Plm: Pupil Lumen) Traditional Efficacy: 75 Lm/W |
Lumen Depreciation Rate (%) |
5% @2000 hrs |
40% @2000hrs |
Lamp Temperature |
Lower, <80 . Reduce A/C cost |
Higher, >300 . Increase A/C cost |
CRI |
>80 (Ra) |
65~90 (Ra) |
Restrike |
Instantly |
Need up to 10~15 minutes |
Flicker |
None |
Much |
Glare |
None |
Much |
Environment Friendly |
No mercury. No any waste lamps in 10 years. |
Much concerns of lots of waste lamps |
GRENLite™ vs. High Pressure Sodium Lamps (HPS)
Comparison Item |
GRENLite™ |
HPS (High Pressure Sodium Lamps) |
Warranty |
Compact 5yrs Separate 10 yrs |
None |
Life Span |
Compact 60,000 hrs Separate 100,000 hrs |
24,000 hrs (Short lifetime because electrode works under high temperature up to 1200 ) |
Energy Saving Efficiency |
Excellent |
Lower |
Lumen Efficacy |
Photopic Efficacy: 150 Plm/W (Plm: Pupil Lumen) Traditional Efficacy: 80 Lm/W |
Photopic Efficacy: 90 Plm/W (Plm: Pupil Lumen) Traditional Efficacy: 120 Lm/W |
Lumen Depreciation Rate (%) |
5% @2000 hrs |
30% @2000hrs |
Lamp Temperature |
Lower, <80 . Reduce A/C cost |
Higher, >350 . Increase A/C cost |
CRI |
>80 (Ra) |
60 (Ra) |
Restrike |
Instantly |
Need up to 10~15 minutes |
Flicker |
None |
Much |
Glare |
None |
Much |
Environment Friendly |
No mercury. No any waste lamps in 10 years. |
Much concerns of lots of waste lamps |
GRENLite™ vs. High Press. Mercury Lamps (HPML)
Comparison Item |
GRENLite™ |
HPM (High Press. Mercury Lamps) |
Warranty |
Compact 5yrs Separate 10 yrs |
None |
Life Span |
Compact 60,000 hrs Separate 100,000 hrs |
3,000~6,000 hrs (Short lifetime because electrode works under high temperature up to 1200 ) |
Energy Saving Efficiency |
Excellent |
Lower |
Lumen Efficacy |
Photopic Efficacy: 150 Plm/W (Plm: Pupil Lumen) Traditional Efficacy: 80 Lm/W |
Photopic Efficacy: 43 Plm/W (Plm: Pupil Lumen) Traditional Efficacy: 50 Lm/W |
Lumen Depreciation Rate (%) |
5% @2000 hrs |
45% @2000 hrs |
Lamp Temperature |
Lower, <80 . Reduce A/C cost |
Higher, >300 . Increase A/C cost |
CRI |
>80 (Ra) |
Lower, 45 (Ra) |
Restrike |
Instantly |
Need up to 10~15 minutes |
Flicker |
None |
Much |
Glare |
None |
Much |
Environment Friendly |
No mercury. No any waste lamps in 10 years |
Much concerns of many waste lamps/Mercury |
GRENLite™ s vs. LED
Comparison Item |
|
GRENLite™ |
|
LED |
Market Potential Size |
|
GRENLite™ can replace most of conventional light sources in functional lighting fields, so its potential market size will be huge. In addition, the incandescent lamp will be phased out in many countries in the very near future, so there will be a big space for energy-saving light sources development. |
|
Although LED has many years of history, it only can be used for the traffic signal, vehicle rear lights, LCD panel back-lighting, display lighting because of lower lumen efficacy, lower wattage, and less lighting fixtures accommodated. It will take a lot of time to develop large wattage model of LED in order to apply LED in the functional lighting fields. |
Economy |
|
With the development of large-scale production, GRENLite™ cost will be reduced much. |
|
The higher cost of LED will be kept for many years, so its wide application will be limited. |
Energy Saving Applications |
|
GRENLite™ can save up to 50% of energy consumption than LED, because GRENLite™ efficacy is 30% higher than LED and lumen depreciation rate is lower much than LED.
Can be used in the industrial, commercial, roads, tunnels, bridges, gardens and parks, agricultural, advertising lighting |
|
LED will consume much more energy than LVD lamps because of its lower efficacy, higher lumen depreciation rate.
Can be used in the traffic signal, vehicle rear lights, LCD panel back-lighting, display lighting. |
Functional Lighting Applications |
|
GRENLite™ can be widely applied for diversified functional lighting application. It is commercialized quickly around the world |
|
Because of lots of barriers for LED’s R&D, it will take 5~10 years for LED to be applied widely in the functional lighting application. |
Technical Specification |
|
- Wattage 15W~300W
- Efficacy >80 lm/W
- CRI >80 Ra
- CCT 2100K~6500K, All range.
- Lumen depreciation 5%@2000hrs
- Lifetime >100,000 hrs
- Heat output much lower
- Fixture accommodated easily
- Linear light source no glaring and flickering, better light quality.
|
|
- Wattage 0.5~1W per each. Big wattage output needs hundreds of LEDs
- Efficacy <60 lm/W (white LED
- CRI >80 Ra
- CCT narrow range white LED
- Lumen depreciation >50%@2000hrs
- Lifetime <50,000hrs
- Heat output much higher
- Fixture accommodated hardly because of heat-releasing design and reflector design
- Spot light source glaring concern
|
• GRENLite™ s (200W)
- MHL (400W)
- HPS (400W)
- Large watts CFL (185W)

GRENLite ™ vs. H.I.D. Lamps
Comparison |
|
GRENLite™ |
|
Metal Halide |
|
High Pressure Sodium |
Warrantee |
|
- Compact: 5 years
- Separate: 10 years
| |
None |
|
None |
Life Hours |
|
- Compact: 60,000
- Separate: 100,000
| |
6,000~20,000 |
|
24,000 |
Energy Saving Efficiency |
|
Excellent |
|
Lower |
|
Lower |
Lumen Efficacy |
|
- Photopic Efficacy: 150 Plm/W (Plm: Pupil Lumen)
- Traditional Efficacy: 80 Lm/W
| |
- Photopic Efficacy: 110 Plm/W (Plm: Pupil Lumen)
- Traditional Efficacy: 75 Lm/W
| |
- Photopic Efficacy: 90 Plm/W (Plm: Pupil Lumen)
- Traditional Efficacy: 120 Lm/W
|
Lumen Depreciation Rate % |
|
5% @ 2,000 Hours |
|
40% @ 2,000 Hours |
|
30% @ 2,000 Hours |
Lamp Operating Temperature |
|
- Lower, <80°F
- Reduces A/C cost
| |
- Higher, >300° F
- Increased A/C cost
| |
- Higher, >350° F
- Increased A/C cost
|
CRI |
|
>80 (Ra) |
|
65~80 (Ra) |
|
60 (Ra) |
Re-strike |
|
Instant |
|
Needs up to 10~15 minutes |
|
Needs up to 10~15 minutes |
Flicker |
|
None |
|
Much |
|
Much |
Glare |
|
None |
|
Much |
|
Much |
Environmental Safety |
|
- No Mercury
- No lamp waste in 10 years
| |
Contains mercury Concern with much lamp waste over 10 years |
|
Contains mercury Concern with much lamp waste over 10 years |
Images |
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GRENLite™ vs. Fluorescent Lamps
Comparison |
|
GRENLite™ |
|
Compact Fluorescent |
|
Fluorescent Tubes |
Warrantee |
|
- Compact: 5 years
- Separate: 10 years
| |
None |
|
None |
Life Hours |
|
- Compact: 60,000
- Separate: 100,000
| |
8,000~10,000 |
|
8,000~20,000 |
Energy Saving Efficiency |
|
Excellent |
|
Good |
|
Lower |
Lumen Efficacy |
|
- Photopic Efficacy: 150 Plm/W (Plm: Pupil Lumen)
- Traditional Efficacy: 80 Lm/W
| |
- Photopic Efficacy: 85 Plm/W (Plm: Pupil Lumen)
- Traditional Efficacy: 50 Lm/W
| |
- Photopic Efficacy: 69 Plm/W (Plm: Pupil Lumen)
- Traditional Efficacy: 70 Lm/W
|
Lumen Depreciation Rate % |
|
5% @ 2,000 Hours |
|
30% @ 2,000 Hours |
|
25% @ 2,000 Hours |
Lamp Operating Temperature |
|
- Lower, <80°F
- Reduces A/C cost
| |
- Higher, >100° F
- Increased A/C cost
| |
- Higher, >150° F
- Increased A/C cost
|
CRI |
|
>80 (Ra) |
|
65~80 (Ra) |
|
60 (Ra) |
Re-strike |
|
Instant |
|
Instant, with initial 3 minute warm up time. |
|
Instant, with initial 3 minute warm up time. |
Flicker |
|
None |
|
Much |
|
Much |
Glare |
|
None |
|
Much |
|
Much |
Environmental Safety |
|
- No Mercury
- No lamp waste in 10 years
| |
Contains mercury Concern with much lamp waste over 10 years |
|
Contains mercury Concern with much lamp waste over 10 years |
Images |
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CASE STUDY in GRENLite™
Comparison Item |
|
Old Lighting System |
|
New Lighting System |
|
Light Source |
|
Metal Halide High Bay |
|
GRENLite™ |
|
Wattage |
|
400W ( per lamp ) |
|
200W ( per lamp ) |
|
Actual Power Consumption |
|
460W ( lamp & ballast ) |
|
210W ( lamp & ballast ) |
|
Brightness |
|
373Lux |
|
510Lux |
|
Luminous Efficacy |
|
Low Efficacy, Severe Luminous Decline, Poor CRI |
|
High Efficacy, Low Luminous Decline Excellent CRI |
|
Life Hours |
|
8000 hrs. ( 1 year @ 24 hrs/Day ) ( Change 274 Bulbs Every Year ) |
|
100,000 hrs. (10 years @ 24 hrs/Day) ( Change ZERO Bulbs for 10 Years ) |
|
No. of Fixtures |
|
274 Sets |
|
274 Sets |
|
Energy and Related Cost Savings:
( 460W – 210W ) * 274 Fixtures = 68,500Watts
68,500 Watts * 24 hours/Day / 1000 = 1,644 kWh per Day Savings
1,644kWh/Day * 365 Days per year = 600,000kWh per Year
600,000kWh per Year * .08 rate = $ 48,000.00/Year Energy Cost Savings
Plus: 274 Lamps * $ 21.00ea. = $ 5,754.00/Year in Replacement Bulbs Costs
Plus: Labor to change Bulbs $ 2,500.00/Year
TOTAL Savings per year: $ 56,254.00
10 Years TOTAL Cost Savings $ 562,540.00
| GRENLite™ Induction Lamp Advantages Over Other Light Sources |
GRENLite™ vs Bubble (Internal Coil) Induction
Longer life at extreme temperatures
Dimmable (now in testing)
Higher Light Output - 80 lm/W vs 60lm/W
Lower Frequency - 210kHz vs. 2.65Mhz
Greater range of wattages available
More color temperatures available
Frequent switching - no affect on life |
GRENLite™ vs Metal Halide Lamps (MHL)
Instant on / re-strike
5-10x longer life than Metal Halide Lamps
No flickering, strobing and much less glare
Lower Maintenance Costs
Better Color Characteristics - 82 CRI vs. 65-75
Lower Min. Start Temp -35°F vs. -20°F
Less Heat Output - Reduces cooling costs Higher Lumen Maintenance - 70%@60,000 hrs.
MHL 65%@mean life (4000-8000 hrs.)
CMH 80%@mean life (3600-8000 hrs.)
|
GRENLite™ vs Fluorescent Lamps
Longer life - 100,000 hours
Similar energy efficiency of T8 & T5 HO
No flickering or strobing
Size - GRENLite™ ™ Venus more lumens than CFL
No Electrodes - no on/off impact on life
Low Maintenance - 1 GRENLite™ ™ lasts as long as:
8 HO replacements
6 T8 replacements |
GRENLite™ vs Incandescent Lamps
20x the rated life
Clearly better energy efficiency
Less glare
Less heat and CO2 output |
GRENLite™ Specifications
GRENLite™ |
Photopic(Plm) |
Photopic efficacy(Plm/W) |
Luminuous Flux
(Lm) |
Luminous Efficacy(Lm/W) |
Life(Hours) |
CRI(Ra)
|
Color Temperature |
PTL-GN-15 W |
1,200-1,500 |
80-100 |
750-900 |
50-60 |
60.000 |
82 |
2700,
3500
4000
5000
6500 |
PTL-GN-23W |
1,900-2,300 |
83-100 |
1200-1400 |
52-61 |
60.000 |
82 |
PTL-GN-40W |
3,900-4,600 |
98-115 |
2400-2800 |
60-70 |
60.000 |
82 |
PTL-GN-40 W |
3,900-4,600 |
98-115 |
2400-2800 |
60-70 |
100.000 |
82 |
PTL-GN-80W |
9,600-11,100 |
120-139 |
5200-6000 |
65-75 |
100.000 |
82 |
PTL-GN-120W |
15,500-18,000 |
129-150 |
8400-9600 |
70-80 |
100.000 |
82 |
PTL-GN-150W |
19,500-22,000 |
130-147 |
10500-12000 |
70-80 |
100.000 |
82 |
PTL-GN-200W |
28,000-30,000 |
140-150 |
15000-16000 |
75-80 |
100.000 |
82 |
PTL-GN-LL-40W |
3,900-4,600 |
98-115 |
2400-2800 |
60-70 |
100.000 |
82 |
PTL-GN-LL-80W |
9,600-11,100 |
120-139 |
5200-6000 |
65-75 |
100.000 |
82 |
PTL-GN-LL-120W |
15,500-18,000 |
129-150 |
8400-9600 |
70-80 |
100.000 |
82 |
PTL-GN-LL-150W |
19,500-22,000 |
130-147 |
10500-12000 |
70-80 |
100.000 |
82 |
PTL-GN-LL-200W |
28,000-30,000 |
140-150 |
15000-16000 |
75-80 |
100.000 |
82 |
GRENLite™ Vs Traditional Lamp
Light Source |
Luminous Efficacy (Lm/W) |
Correction Coefficient |
Photopic efficacy(Plm/W) |
Lamp Life
(hours) |
CRI(Ra) |
Color Temerature(K) |
Incandescent |
15 |
1.26 |
19 |
1,000 |
100 |
2800 |
Halogen |
15 |
1.32 |
20 |
2,000-3,000 |
100 |
3000 |
Traditional Fluorescent |
70 |
0.98 |
69 |
8,000 |
70 |
All Rangs |
Tri-phosphor Fluorescent |
90 |
1.58 |
142 |
10,000 |
80-98 |
All Rangs |
Mercury |
50 |
0.86 |
43 |
6,000 |
45 |
3300/4300 |
Low-Pressure Sodium |
200 |
0.38 |
76 |
28,000 |
44 |
1700 |
High-Pressure Sodium |
120 |
0.76 |
91 |
24,000 |
23/60/90 |
1950/2200/2500 |
MHL |
75-95 |
1.49 |
111-141 |
6,000-20,000 |
65-92 |
3000/4500/4600 |
GRENLite™ SLamps |
70-80 |
1.85* |
130-150 |
Compact:60,000
Separate:100,000 |
>80 |
All Rangs |
GRENLite™ Replace to Traditional Lamps
Traditional Lamps |
GRENLite™ SLamps |
Type |
Rated Power (W) |
Power Consuming (W) |
Rated Power (W) |
Power Consuming (W) |
HPS |
|
|
|
|
MHL |
|
|
|
|
HPM |
80 |
125 |
180 |
250 |
400 |
450 self ballast |
|
|
|
|
CFL
(Self ballast) |
|
|
|
|
* Errors expected and possible alterations without prior notice. |