Nikki Co., Ltd.
Nikki NLT8 Series Hanging LED floodlight
Manufacturer: Nikki Co., Ltd.
Model: NLT8 Series
Features
This is a straight tube LED light with a built-in LED source and power supply. It’s over 50% brighter at 1m than traditional 40W fluorescent tubes and offers flicker-free, gentle illumination thanks to its unique power supply design.
With a 60,000-hour lifespan at 25°C, it ensures excellent maintainability. It also features protection against inrush currents, surges, and power outages, and boasts high insulation for added safety.
The polycarbonate body is lightweight, shock-resistant, and drop-proof. It uses a standard G13 base and can be installed in existing fixtures with bypass construction, offering significant energy savings.
Its 220° beam angle provides wide, even lighting.
Application Examples
Ceiling lighting in offices and offices, shop window and display lighting, etc.
Specification
| Color Temperature | 5,700K |
|---|---|
| Expected Life | Operating temperature 25℃ 60,000 hours *Life is the point at which the illuminance becomes 70% of the initial illuminance. |
| Operating temperature | -10℃ to 40℃ (but do not freeze) |
| power supply | AC100-110V |
| Average Color Rendering Index | Ra80 |
| Light distribution angle | 220° |
| Main unit | Polycarbonate |
| Base | Compatible with G13 sockets |
| full length | 1,198 mm |
| Pipe diameter | 26 mm |
*Only straight tube LED lamps are sold. (Light fixtures not included)
Standard Model List
| Model | Total luminous flux | Illuminance (1m) | power supply | Power Consumption | Specific energy consumption efficiency | weight |
| NLT8-41 | 2,200lm | 490lx | AC100-110V | 19W | 115lm/W | 370 g |
Comparison of wiring between conventional fluorescent lamps and straight tube LEDs
Comparison of power consumption and electricity charges
| Glow Method | Inverter Method | Straight tube LED system | Price difference with LED fluorescent lamps (glow type/inverter type) | |
|---|---|---|---|---|
| Power Consumption | 49W | 42W | 19W | |
| Electricity cost/month per unit | 416 yen | 357 yen | 161 yen | 255 yen / 196 yen |
| Electricity cost per year | 4,997 yen | 4,283 yen | 1,937 yen | 3,060 yen / 2,346 yen |
Calculated at 28.33 yen per kWh based on the electricity rate for Kansai Electric Power Co.’s 60A Time-of-Use Light B (as of October 2016) contract.
Calculation results assuming lighting for 10 hours per day for one month (30 days).
If you replace glow-type fluorescent lamps with LEDs, you can save more than 250 yen per lamp per month.
You can save more than 3,000 yen per unit per year on your electricity bill.
The role of constant current circuits
If a surge occurs in the power supply, the surge protection circuit will protect the LED.
If the DC power supply is not fully rectified, AC waves will remain and cause flickering.
Once fully rectified, there will be no flicker.
Flickering can cause eye fatigue
If rectification is incomplete, slight AC waves will remain, causing flickering.
Flickering can cause eye fatigue.
Role of the constant current circuit ①
With a built-in constant current circuit, a constant current always flows through the LED, even if there is a sudden voltage rise (surge).
This ensures that the brightness remains constant at all times. In addition, as the current does not exceed the rated value, deterioration of the LED is prevented, resulting in a longer lifespan.
Role of constant current circuit ②
By removing the waves in the AC, the resulting current is rectified, eliminating flicker and causing less eye fatigue even when used for long periods of time.
Straight tube LED replacement example
General office: 12m length x 10.5m width x 2.5m height (126㎡)
Fluorescent lamp arrangement and illuminance distribution
Illumination on a desk with fluorescent lighting: average illuminance 752 lux
(minimum illuminance 353 lux, maximum illuminance 1147 lux)
Average monthly power consumption: 39 units (1 unit x 2 lights) assuming 21 working days per month 98W x 10 (hours) /1000 x 21 days = average power consumption 802.6kWh
*Please ask a qualified electrician to replace fluorescent lights with LEDs.
Illuminance distribution after replacing with LED
By replacing fluorescent lights with LEDs, power consumption has been significantly reduced and the lighting has become much brighter, making the office feel brighter.
Furthermore, although it is not visible to the naked eye, fluorescent lights tend to flicker, which can cause eye fatigue. However, our linear LEDs are expected to eliminate this flicker and reduce eye fatigue.
Illumination on the desk after replacing with LED: Average illuminance 943 lux
(minimum illuminance 376 lux, maximum illuminance 1487 lux)
Average monthly power consumption: If the number of working days is 21 days/month, 39 units (1 unit x 2 lights) x 38W x 10 (hours) /1000 x 21 days = average power consumption 311.2 kWh
| Energy savings per month | ||||
|---|---|---|---|---|
| Fluorescent lamp power consumption: 802.6 kWh | – | LED power consumption: 311.2 kWh | = | Energy savings: 491.4 kWh |
| LED power saving: 491.4 kWh | × | Electricity unit price: 35 yen | = | Energy savings per month: 17,199 yen |
Illuminance distribution after replacing with LED
(when the standard office illuminance is set to 750 lux according to the JIS standard)
Desk illuminance after replacing with LED: Average illuminance 678 lux
(minimum illuminance 376 lux, maximum illuminance 1487 lux)
Average monthly power consumption: If the number of working days is 21 days/month,
29 units (1 unit x 2 lights) x 38W x 10 (hours) /1000 x 21 days = average power consumption 231.4 kWh
| Energy savings per month | ||||
|---|---|---|---|---|
| Fluorescent lamp power consumption: 802.6 kWh | – | LED power consumption: 231.4 kWh | = | Energy savings: 571.2 kWh |
| LED power saving: 571.2 kWh | × | Electricity unit price: 35 yen | = | Energy savings per month: 19,992 yen |
JIS standard illuminance standard
| Illuminance (lux) | office | factory | school | Insurance/Medical Facilities | Commercial Facilities |
|---|---|---|---|---|---|
| 750 | Office Executive Office Entrance Hall (daytime) | Somewhat precise visual work | Cash register Fashion store: fitting room Supermarket: storefront | ||
| 500 | Conference Room Control Room | Normal visual tasks | Experimental study room Library reading room Broadcasting room | Examination room Recovery room Mortuary | Large stores: General stores Restaurants: Kitchens |
| 300 | Reception restroom elevator hall | Warehouse administration | Classroom Staff room Gymnasium | X-ray room | |
| 200 | Toilet changing room storage room | Rough visual work Electrical room, air conditioning machine room | Auditorium Assembly Room | Restaurant: Guest Rooms |
*General electricity rates. Electric power companies have a fairly complicated pricing system, so these are just rough reference values.
*Home power: ¥35/kWh / Small business: ¥25/kWh
