Why Solar Streetlight?
Conventional Solution
Lead Acid Battery
SUNLIGHT SOLUTION
World’s most innovative solar LED outdoor light
SUNLIGHT-SI SERIES
Product name
Code
Rating
(W)
Equivalent
local LED
(W)
Peak
Lux@4
m
Solar
Panel
(W)
SUNLIGHT-SI1
SI1
4
7 To 9W
12
14
SUNLIGHT-SI2
SI2
9
12 to 15W
21
26
SUNLIGHT-SI3
SI3
15
18 to 21W
31
35
System Efficiency
>150lumen/W LED
+
Lenses
=
High light output per
Watt
and
ZERO LIGHT
POLLUTION
No wire loss with inbuilt
battery
+
Low idle current
=
>92% system efficiency
Theft and Water proof
IP65
Fast Charging
Solar Charging cycle Test (spec. 6hrs) with 35W panel on 15W LI3
Time
Duration
Battery
Voltage
8.00
0hr
10.00
2hrs
15.25
11.00
3hrs
15.74
12.00
4hrs
16.34
4hrs 55m
16.76
12.55
Status
Clear sky condition
Battery upper cut off
Self Autonomy
LEAD
ACID
High
Idle
current
LITHIUM ION
Wire loss
No wire loss
+
Low idle current
+
Smart electronics
Wire loss
Partial charging/light availability
on cloudy days
Wire loss
No charging/blackout on cloudy days
Dusk To Dawn Operation
Lux and Run time Laboratory Test on 15W LI3
Battery Lux @4
Avg
Backup
Dimming
Voltage
mts
Lux
0hrs
30m
1h
1h,30m
2h
3h
3h,30m
4h
4h,30m
5h
6h, 15m
6h,45m
7h 15m
7h,45m
8h 15m
8h,45m
9h 15m
9h,45m
10h 15m
10h 45m
11h 15m
11h 45m
12h 15m
12h 45m
16.5
15.96
15.84
15.62
15.42
15.12
15.1
15
14.95
14.9
14.87
14.81
14.78
14.72
14.65
14.58
14.56
14.44
14.24
14.15
14.05
13.87
13.24
12.85
13h 15m
12.35
36.4
35.9
35.2
34.8
34.6
34
33.8
22.3
21.3
20.9
16.8
14.1
14.6
14.2
14
10
9.8
8.8
8.8
8.7
8.7
8.7
8.7
8.7
Battery
cut off
3.0hr
35.1
3.3hr
23.2
7hrs
11
Aesthetics
Low Installed Cost
Battery box
Pole
Connector
Maintenance Free
No water topping
Robust at High temperature
10year lifetime
Automatic on/off
Electronics
Mechanical
Reliable
Return on Investment
SITE INSTALLATION PICTURES
SITE INSTALLATION PICTURES
SITE INSTALLATION PICTURES
SITE INSTALLATION PICTURES
SITE INSTALLATIONS PICTURES
SITE INSTALLATIONS PICTURES
SUMMARY
Installed base of over 4000 lights across India and Africa
Theft proof and IP65 compliant battery
Simple Installation and Maintenance
Microcontroller based technology for efficient charging
even during cloudy conditions
Low Cost of Ownership