9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com
510' Temporary Tunnel String Light - 51 LED Work Lamps - 240/277V - 12/4 SJTW Cable - Twist Lock End
Part #: WAL-SL-51-LED-12.4
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Larson Electronics LLC www.LarsonElectronics.com
9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com
Made in the USA
The Larson Electronics WAL-SL-51-LED-12.4 Temporary Tunnel LED Lighting String Light System is designed for high output
illumination and daisy chain connections across a total length of 510' away from the power source. The 10 watt LED lamps on this this
work site light set provide more and higher quality light than 100 wattage incandescent lights while creating less heat and using less
power. This LED light stringer operates on 240/277V AC and provides operators with a temporary work light solution for tunnels and
underpasses up to a mile in length.
This temporary tunnel string light consists of 51 industrial grade LED lamps with 10' of 12/4 SJTW cable between each unit, stretching a total of
510' in length. This temporary LED string light is connected to a 240/277V power source via an integrated 5' line-in cable. Each globe light is
equipped with a high output LED bulb which delivers more light output than a 100 watt incandescent. The 10 watt LED bulb draws 10% the
electrical power of a standard 100 watt bulb, making it suitable for standard voltage and low voltage applications. Each LED light screws into a
molded E26 lamp socket and the bulb is enclosed in a bird cage style plastic guard.
Fifty-one high output A19 style LED lamps producing 1050 lumens per lamp provide a total of 53,550 lumens of bright white illumination. Each
lamp housing is constructed from light weight aluminum, and fitted with an impact and shatter resistant polycarbonate diffuser. These LED light
bulbs provide additional safety measures and time savings, given the low heat production and that it does not require replacing for 50,000 hours.
Since the LED bulb uses solid state technology, the vibration (dropping, etc.) that degrades conventional incandescent bulbs is not an issue with
these LED bulbs.
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Unlike the glass tube design of traditional fluorescent lamps, these LED T-Style lamps have no filaments or fragile housings to break during
operation. Instead of using a combination of gases to produce light, light emitting diodes (LEDs) use semi-conductive materials that illuminate
when electric current applied and emitting light. The LED assembly is mounted to the extruded aluminum, with a polycarbonate lens protecting
the LEDs. With LED lights, there is no warm up time or cool down time before re-striking and provide instant illumination when powered on,
adding to the reliability of LED technology. By nature, LED light sources run significantly cooler than fluorescent lamps, reducing the chance of
accidental burns and increased temperatures due to heat emissions. This solid state design of light emitting diodes provides a more reliable,
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Larson Electronics LLC www.LarsonElectronics.com
9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com
stable, durable, and energy efficient light source over traditional fluorescent lighting.
Safety within the workplace is another benefit of LED work lights and temporary lighting. All light sources produce heat. With traditional work
lamps, such as incandescent and halogen light sources, the lamp reaches high surface temperatures. These surface temperatures introduce a
burn risk to anyone to anyone that allows prolonged skin contact with the light source, as well as a fire hazard if a flammable material is
accidentally set too close to the light source for an extended period of time. While LED fixtures do still produce heat, they are designed with heat
sinks to properly disperse the heat. Each LED bulb is engineered to disperse and expel this heat quickly and efficiently, keeping the lamp cooler
than traditional light sources. This LED work light operates at a lower surface temperature than a comparable model with traditional light source,
and thus does not present a significant burn risk if an operator or bystander accidentally brushed up against an exposed lamp, and reduce the
fire hazard should they fixture accidentally come in contact with a flammable material for a short period of time. This significantly increases the
safety within the work environment.
Each light has a plastic mesh guard enclosure that provides protection for the enclosed bulb and a hook eyelet that allows operators to hang
these tasks lights overhead. Utilizing energy efficient LED lamps, operators are able to provide more light coverage from the same amp draw, or
lower the amp draw using the same amount LED lamps as incandescent. Each LED trouble light has an effective range that approximately
covers a 5-8' radius with 10-15 foot candles of light. Unlike fragile incandescent and compact fluorescent lamps that are made from glass, these
LED bulbs are extremely durable and can live up to the abuse of harsh working conditions. With a lamp life of 50,000 hours, operators are not
constantly having to replace burnt out or broken lamps, reducing down time and lowering the amount of spare lamps required at the job site.
Multiple stringer sections can daisy chained together via 5' whips terminated in twist lock connectors, with a maximum of nine stringers on 240V
or ten stringers on 277V daisy chained together. Alternating hots along between each daisy chained unit allows these string lights to be
connected together, spanning over a mile in length. Previously, it would have been unrealistic to have a complete assembly reaching 510' in
length from a single point of power.
Stringer Energy Consumption Comparison (Single Stringer)
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Larson Electronics LLC www.LarsonElectronics.com
9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com
IncandescentCFLLED
Wattage (single unit)100 watts26 watts10 watts
Wattage (total)5,100 watts1326 watts510 watts
Amp Draw @ 240V AC21.25 amps5.53 amps2.13 amps
Amp Draw @ 277V AC18.42 amps4.79 amps1.85 amps
Lamp Life Expectancy1,500 hours8,000 hours 50,000 hours
Color Temperature2800K4300K6000K
Operation cost per day
(12hs/day @ 12c/kWh)
Operation cost per month
(12hs/day @ 12c/kWh)
Operation cost per year
(12hs/day @ 12c/kWh)
Stringer Energy Consumption Comparison (Ten Stringer)
Please note: This string light is not capable of supporting 100 watt lamps for daisy chain connection nor 26 watt lamps for more than four string
lights daisy chained together due to cable restriction and overloading the cable. These comparison charts are for references only. To be able to
achieve the same results with traditional light sources, higher amp capacity cable would be required or shorter runs per string light assembly. To
be able to achieve the same distance, multiple power sources would be required for the total length of the area that requires being illuminated.
Also note that for incandescent lamps, due to voltage loss over distance, the light from start to end of the single string light, with the lamps at the
tail end of the stringer being nearly half the light output as the ones at the head end of the string light by the power source. For compact
fluorescent lamps, this would require bulbs with internal ballasts that are universal voltage and capable of auto sensing voltage and adjusting
accordingly. Otherwise the lamps will stop operating properly or fail prematurely after a certain distance due to voltage drop
The LED string lights from Larson Electronics have been designed to overcome the above difficulties and faults with traditional lighting. This
allows operators to run a single strand of string lights within the work area and span long distances from a single power source and work around
voltage drop without sacrificing light output. This feat would not be possible with above traditional light sources without increasing cable size,
weight of the unit, number of power sources required to span the same distance, while providing more light output within the work space.
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Larson Electronics LLC www.LarsonElectronics.com
9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com
These LED lamps are suitable for wet areas, extremely long lived, resistant to damage from impacts and vibrations, and consume far less energy
than standard lamps. This tunnel string light is configured to operate with 240 or 277 volt electrical current. The LED lamps provide more and
better quality illumination than 100 watt incandescent string lights without the high heat and fragile glass construction of traditional lamps. With
the low energy requirements of LED lamps, mile long assembly units are now physically possible.
Lamp FeaturesSuperior LED Benefits
1. 10 Watt LED Lamps
2. 51 Lamps for a total of 510 watts spanning 510' in length.
3. 1,050 lumens per lamp for a total of 53,550 lumens.
4. High output LED lamps provide bright white illumination and better
color rendering compared to the dingy yellow tint of traditional
incandescent lamps.
5. Outdoor approved equipment.
6. No ballast, no flickering, instant on illumination
7. Cage plastic Guards for added protection
8. 240/277V AC Operation
9. Durable solid state LED construction resists damage from impacts
and vibrations.
10. Hanging hook for hanging and hands free operation.
11. 10' of 12/4 SJTW cable between each light.
12. 510' span of temporary LED work lighting.
13. Daisy chain operations allows connecting multiple stringers
together for maximum work site illumination, while aiding in servicing,
storage, and transport of the tunnel light system.
14. Energy efficient alternative to incandescent and compact
fluorescent temporary string lights.
1. 50,000 hour lifespan.
2. Can SAVE 50% or more on energy.
3. Qualifies retrofit projects for financial incentives, including utility
rebates, tax credits and energy loan programs.
4. Reduces energy use and prolongs life-spans of peripheral cooling
units (A/C, refrigeration)
5. 100% recyclable.
6. No toxins-lead, mercury.
7. No UV light, infrared radiation or CO2 emissions.
8. Qualifies buildings for LEED and other sustainable business
certifications.
9. Bright, even light maintains consistent color over time.
10. Instant on/off – No flickering, delays or buzzing.
11. Very good color rendering.
12. Vibration/impact resistant.
13. Significantly cooler operation.
14. Less frequent outages, higher output improves workplace safety.
Specifications / Additional Information
WAL-SL-51-LED-12.4 String LightsFeatures
Lamp Type: LEDLower Amp Draw
Lamp Quantity: 530Wet Area Approved
Lamp Watts: 10 wattsHigh Output 10 Watt LED Lamps
Total Watts: 5,100 WattsDaisy Chain Connection (End to End)
Lumens: 53,550 (1050 per lamp)510' per String - Max Spanning 510'
Voltage: 240/277V AC 50/60 Hz53,550 Lumens of Total Illumination
Total Length: 510'
Wiring: 10' 12/4 SJTW Cable Per Unit, 5' WhipsSpecial Orders- Requirements
Cord Caps: L14-20 (240V) or L22-20 (277V) Twist Lock Cord CapsContact us for special requirements
Mounting: Eyelet for hook mountingToll Free: 1-800-369-6671
Shipping Dimensions: 32" x 30" x 36"Intl: 1-903-498-3363
Shipping Weight: 200 lbsE-mail: sales@larsonelectronics.com
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Part #: WAL-SL-51-LED-12.4 (72862)
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Larson Electronics LLC www.LarsonElectronics.com
9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com
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Larson Electronics LLC www.LarsonElectronics.com
9419 E US HWY 175, Kemp, TX 75143 Phone: 903.498.3363 Fax: 903.498.3364 Email: sales@LarsonElectronics.com