![](/html/6b/6bd9/6bd9ee6c0633a26dde691749521636b6c2b0f2b16946aeb9e20e49289e8e619b/bg1.png)
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
250' Temporary Tunnel String Light - 25 LED Work Lamps - 277V - 12/4 SJTW Cable - L7-20 Twist Lock
Part #: WAL-SL-25-LED-12.4-L7.20
Page: 1
![](/html/6b/6bd9/6bd9ee6c0633a26dde691749521636b6c2b0f2b16946aeb9e20e49289e8e619b/bg2.png)
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-25-LED-12.4-L7.20 Temporary Tunnel LED Lighting String Light System is designed for high output
illumination and daisy chain connections across a total length of 250' 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 277V AC and provides operators with a temporary work light solution for tunnels and
underpasses up to half a mile in length.
***FREE SHIPPING OFFERS DO NOT APPLY TO THIS STRING LIGHT***
This temporary tunnel string light consists of 25 industrial grade LED lamps with 10' of 12/4 SJTW cable between each unit, stretching a total of
250' in length. This temporary LED string light is connected to a 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.
Twenty-five high output A19 style LED lamps producing 1050 lumens per lamp provide a total of 26,250 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.
Click Photo to Enlarge Click Photo to Enlarge Click Photo to Enlarge
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
Page: 2
![](/html/6b/6bd9/6bd9ee6c0633a26dde691749521636b6c2b0f2b16946aeb9e20e49289e8e619b/bg3.png)
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
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 ten stringers daisy
chained together. Alternating hots along between each daisy chained unit allows these string lights to be connected together, up to 10 units end
to end spanning half a mile in length drawing less than 10 amps. Previously, it would have been unrealistic to have a complete assembly
reaching 2500' in length from a single point of power.
Stringer Energy Consumption Comparison
Incandescent CFL LED
Wattage (single unit) 100 watts 26 watts 10 watts
Wattage (total) 2,500 watts 650 watts 250 watts
Amp Draw @ 277V AC 9.03 amps 2.35 amps 0.90 amps
Lamp Life Expectancy 1,500 hours 8,000 hours 50,000 hours
Color Temperature 2800K 4300K 6000K
Operation cost per day
(12hs/day @ 12c/kWh)
Operation cost per month
(12hs/day @ 12c/kWh)
Operation cost per year
(12hs/day @ 12c/kWh)
$3.60 $0.94 $0.36
$108.00 $28.08 $10.80
$1,314.00 $341.64 $131.40
Page: 3