My place have started putting in these (actual picture) for overnight lighting, and from observation they're only lasting around 6 hours before packing in.  Battery full to battery empty if the 5 leds on the front panel are the battery monitor.

 

 

With a bit of help from Google I've tracked down some information but a lot of it seems contradictory, eg one source says the battery is 10,000 mAh for the 50W version and one says 4.5AH.  Can anyone tell me with any more accuracy what is actually being used and what should be expected from it?

 

Some information sources:

 

https://www.lazada.co.th/products/jd-jd-t-30w-t-50w-t-100w-t-200w-t-300w-jd-jindian-i2910613805-s11510074126.html?

 

https://estrexsolar.co.ke/?product=jd-solar-led-floodlight-50w-100w-200w-300w

 

https://www.damany.co.ke/product/jd-jindian-solar-floodlights-50w-jd-t50

 

OK. these lights are generally rated as incandescent equavalent so they seem more powerful than they really are, a "50W" flood is more like 5W in reality.

 

The 50W unit has a 6W solar panel which would generate about 20Wh per day.

 

20Wh will run a 5W lamp for about 4 hours (which is pretty close to what you are seeing).

 

10,000mAh at 3.2V would be around 320Wh which, if real, would take that baby panel 16 days to charge!!

 

Something isn't adding up in the specs. but I'm afraid that at that price point ... 

 

You could try leaving the beast for a couple of days with the unit turned off via the remote so it doesn't light up at night to ensure whatever battery it has is fully charged.

 

 

56 minutes ago, Crossy said:

Something isn't adding up in the specs. but I'm afraid that at that price point

 

Understood.

 

56 minutes ago, Crossy said:

You could try leaving the beast for a couple of days with the unit turned off via the remote so it doesn't light up at night to ensure whatever battery it has is fully charged.

 

I don't have access to a remote or anything as it's "the office" that have arranged it all.  I have an ear in there but not easy to get a hold of, and my observation is of one unit on my floor and 5 presumably identical ones in another building I overlook.

 

However if my arithmetic is right they intend to have installed over 80 of them when done, and then they're moving on to the street lights.

We have three "150W" solar street lights, these cost 1200Baht each back in 2020.

 

They all still make it through the night with a decent light level 🙂 

 

One major plus of the ones we have is that the case is screwed together (many are glued), so in the event of battery failure they can be easily fixed 🙂 

 

I did do a thread on the beasties back then, I'll try to find it.

 

 

We have the same.....to get them through the night we have to use a setting well below full brightness.

Found my old thread.

 

 

On 8/21/2025 at 10:16 AM, treetops said:

My place have started putting in these (actual picture) for overnight lighting, and from observation they're only lasting around 6 hours before packing in.  Battery full to battery empty if the 5 leds on the front panel are the battery monitor.

 

 

With a bit of help from Google I've tracked down some information but a lot of it seems contradictory, eg one source says the battery is 10,000 mAh for the 50W version and one says 4.5AH.  Can anyone tell me with any more accuracy what is actually being used and what should be expected from it?

 

Some information sources:

 

https://www.lazada.co.th/products/jd-jd-t-30w-t-50w-t-100w-t-200w-t-300w-jd-jindian-i2910613805-s11510074126.html?

 

https://estrexsolar.co.ke/?product=jd-solar-led-floodlight-50w-100w-200w-300w

 

https://www.damany.co.ke/product/jd-jindian-solar-floodlights-50w-jd-t50

 

6 hours is about right in my calculations

On 8/21/2025 at 10:51 AM, Crossy said:

OK. these lights are generally rated as incandescent equavalent so they seem more powerful than they really are, a "50W" flood is more like 5W in reality.

 

The 50W unit has a 6W solar panel which would generate about 20Wh per day.

 

20Wh will run a 5W lamp for about 4 hours (which is pretty close to what you are seeing).

 

10,000mAh at 3.2V would be around 320Wh which, if real, would take that baby panel 16 days to charge!!

 

Something isn't adding up in the specs. but I'm afraid that at that price point ... 

 

You could try leaving the beast for a couple of days with the unit turned off via the remote so it doesn't light up at night to ensure whatever battery it has is fully charged.

 

 

You forget to mention when the sun dosent shine. I have 4 running of 2 solar panels most of the time the last all night on auto mode but obviously not when we have heavy cloud cover 

 

On 8/21/2025 at 10:51 AM, Crossy said:

OK. these lights are generally rated as incandescent equavalent so they seem more powerful than they really are, a "50W" flood is more like 5W in reality.

 

 

Now that's interesting.

 

We put some floodlights up thinking we would look like Blackpool illuminations..........they look bright to look at.......but when you look to see what they actually light up they seem quite weak?????

 

 

 

1 minute ago, Hardcastle P said:

You forget to mention when the sun dosent shine. I have 4 running of 2 solar panels most of the time the last all night on auto mode but obviously not when we have heavy cloud cover 

 

Interestingly, our solar street lights have never not made it through the night even with several 'orrible dark days, they've always been "on" in the morning, dim, but on. 🙂 

 

Cue, them failing to go all night tonight

 

 The floodlights are a different animal, they now only just make a whole night even after bright days 😞 

5 minutes ago, Will B Good said:

Now that's interesting.

 

We put some floodlights up thinking we would look like Blackpool illuminations..........they look bright to look at.......but when you look to see what they actually light up they seem quite weak?????

 

Have a read through my other thread linked above, estimate what you really have vs what it said on the box.

You can expect everything. They can make up battery capacity or LED's.

A solar panel has loss in efficiency when higher temp and Thailand is hot.

Panels in sun, lots of light but temperature builds up, so efficiency less.

Also if the LED panels are in sun, panels heat up and can be way higher then max tolerable temp.

Therefor electronics is effected and overall performance.

Also dont see on pic or description lazada IP class, maybe they cant handle water that much.

You know what happens water with electricity.

According JD website:

https://www.gdjdtyn.com/en/m/content.asp?id=276

 

We have a number of solar lights installed over the last 3 or 4 years. Usually, they work OK up to around Midnight, after that, wouldn't know because I am asleep. Main bugbear is life expectancy. Have one light which refuses to switch off daytime, so rather dim in the evenings (but it actually works for a long time). Sensors and on/off switches are often plastic, and disintegrate after about 2 years due to UV, and stop working. Also in storms we had this year 4 lights were blown down, 2 of them actually had the metal frames mangled (not from the fall, the frame was still hanging up there, the lights disassembled themselves but one actually still worked). 

 

Moral of the story - do not buy cheap, and over engineer any fittings.