Light The World Science & Technology Ltd. was established in 2008, dedicated to providing lighting products with low harm to the earth's environment. Today, it is more towards the goal of ESG sustainable development, and is truly moving towards a lighting business where environmental protection and economic development go hand in hand.

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LED Street Lights

70W Street Light Bulb
70W Street Light Bulb
70W Street Light Bulb

70W Street Light Bulb

LED Street Lights

  • Input : 100 ~ 240 Vac
  • 70W LED drive power, can be retrofitted :
    2.4G bluetooth dimming control circuit
    GPS
    70W ~ 20W dimming circuit
  • LED lighting module :
    210 Lm/W LED chip usage
    Three-piece nonlinear ultra-wide-angle light-emitting design
    Rotatable lighting angle design

Limitation of LED bulb inside the cobra head

Limitation of LED bulb inside the cobra head - 70W Street Light Bulb
  • 1. Smart control unit - NEMA Connector ( BLE MESH / WIFI MESH / 5G)
  • 2. High wattage & low weight
    Replacing traditional high-wattage light bulbs, LED light bulbs need to have adequate cooling systems, both body and weight are considerations
  • 3. Heat dissipation
    The street light fixture is used outdoors, and the structure itself is a closed light fixture. No ventilation and convection can help the internal light bulb to dissipate heat. If it is replaced with an LED light bulb, the system of the LED light bulb itself must be able to hold the light bulb at normal working temperature.
  • 4. Hign lumen output and efficiency
  • LED street light bulb must be : Small size, Light weight, Low tempt., High brightness, Protection design

Replace the street light head is the major way

Replace the street light head is the major way - 70W Street Light Bulb
  • Traditional street light with Mercury lamp or Sodium lamp inside
  • LED Fixture
    Active heat dissipation : Heat pipe, fan
    Passive heat dissipation : FIN, HEAT SINK
  • LED's lumen efficiency is not high enough. To replace the whole fixture is the major way

Sodium lamp

  • Sodium lamp refers to a lighting device that uses metallic sodium vapor as a working substance, and is a type of gas discharge lamp. Sodium lamps are also filled with mercury and rare gases, but what actually works is sodium vapor. Sodium is ionized and excited to emit yellow light at 589 nm, which is used directly for illumination, rather than the white visible light that excites fluorescent substances like fluorescent lamps.
  • High-power ( ≥ 250W ) street lamps: high-pressure sodium lamps have high efficiency, considering three factors, such as ballast loss, lamp efficiency and optical channel utilization. Lm/W.
  • Low-power ( ≤ 150W ) street lamps: the effective luminous efficacy of sodium lamps ( including the overall efficiency of 0.55 ) is about 45 ~ 55 Lm/W.
Item ST40-70NI-850
Input Voltage V AC100V – 277Vac
Input wattage W 70W ± 10%
Input Constant Current A 0.7A
Input Frequency HZ 50 - 60 Hz
Power Factor 0.95
Operation temperature -20℃ ~ +60℃
Storage temp -30℃ ~ +80℃
Anti-lightning voltage ( L-N ) : 6KV, ( L-PE,N-PE ) : 10KV
Life Span > 24,000 Hr
Dimension Ø 93 mm x 300 mm
Screw cap E39 / E40
Weight gm 1500 gm
Waterproof IP65 with Fixture
Beam angle 180 degree
Safety CNS / CE / UL / PSE
LED Chip 3030 high power
CCT ( K ) 5000K
CRI ( RA ) >70
Luminous light effect lm/w 180
Luminous Lumens lm 12600

Comparison of sodium lamps and LED street light bulbs

Name 250W Sodium bulb 70W LED bulb
Port E40 E40
Model PHILIPS ST40-70NI-830
Dimension ø x L Φ 60 x 300 mm Φ 93 x 300 mm
Watts 250W ( Ballast losses are not considered ) 70W
Color temperature / color rendering 2000K / 25 3000K / 70
Beam maintenance 5000 hours 92% 96%
Luminous efficiency 100 Lm/W 180 Lm/W
Lumen value 25000 Lm 12600 Lm
Lampcover luminous effect breakage 40% ( Full period-luminosity ) 7% ( Downlight )
Actual output lamp lumen value 15000 Lm 11718 Lm
Life Span 12000 Hrs 24000 Hrs
Power saving effect Compared to 250W sodium lamp 72%
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