Sunlite Science and Technology

Question
Purchase eagle turbo 2200 from my snap-on dealer and it seems to have a switch problem. After the light gets hot specifically in turbo mode 128-130 Deg F. If you switch off turbo and use the front switch the LED with start to flicker and change brightness and go on and off. Switching the turbo back on will not help it does the same flickering just brighter. Let it cool down again and its fine till it warms up.. Driver problem? is this thing regulated? Battery is fully charged also.

Answer
The light itself is not regulated. the regulation is from the Li-ion battery.

If you set the flashlight on a table, it is normal that the temperature will rise to 130 F, this means heat generated from the LED chip dissipated to the housing. it should not go over 160 F.
Housing temperature will not be that high if you held the flashlight.

I think it is contact problem, either the contact in the switch, or the contact in the LED head. this is covered by our warranty. Please send it to
Sunlite
345 N. Iowa Street
Lawrence KS 66044

We will take care of it.

Question
Hi. I have the turbo light(220 lumens). Just want to start off by saying,it's the best light I ever used. The issue I'm having is it seems to have lost some of it's intensity. It's been that way since I left it on for an hour and a half straight, by accident(left it on, under a truck I was
working on). The light was very hot. When I plug it in, the intensity of the light shows no significant change. The intensity between the side switch and tail switch are normal. Could there be a resistance issue due to it being on so long at one time? The most I keep the light on is for about 15 min max. Any longer I use a drop light.

Answer
Battery capacity will drop over the time, that will affect the intensity of the light.

Running it for over an hour should not be a problem with this light. If you are concerning about the resistance issue, the only thing I can think of is the contacts oxidization because of high current. You can just clean the contacts (between the housing and tailcap, and between the housing and switch unit ) with cleaning alcohol and then apply a little electrical cream to the contacts.

By the way, we sealed the switch unit to the battery housing, but not with strong seal (in case end user may want to replace the switch unit). If it is still tight, don't worry about the contact there, if the switch unit can be easily unscrewed , you can clean the contacts and seal it back on. A very small amount of wood glue from walmart will fix it in place, and wood glue is very strong. You still can unscrewed it down the road when you need to. leaving the side switch unit is not recommended, dirt can easily get in causing flicking problem to the light.

Question
I did the cleaning,no change. The light is only a year and a half old. Battery fully charged is 4.2 volts. I seen on your forum that if you plug the light in and it gets brighter then it's the battery. Mine shows no change in brightness when plugged in.

Answer
4.2V does not mean the battery capacity is still full. If there is no change in the light brightness when you use charger to power, it should not be battery.

So it leaves only the LED head. the intensity degradation may either come from the LED chip itself, (this is the nature of the LED) or the lens.
If the LED head is continuously running at high temperature, it will speed up the degradation of both the LED chip and the lens. Also Turbo LED head is plastic TIR lens, there might be scratch or grease penetration over the time. What do you say the percentage of degradation?

Question
About 15%. It's brightness is about equivalent to a 180 lumen light. Which isn't terrible, but I need the light to spot skunks under trucks at night.

Answer
The degradation from the LED chip itself is around 5% every year. I guess the rest of the degradation is from the lens.
If 180 lumens is not bright for your application, we can exchange the LED with a new LED head (released this year, around 280 lumens new) for $16. Do you want to exchange?

Question
Sure. Just send me the instructions on how to do so.

I've also purchased a flashlight but luckily it never found a single problem. Sometimes it's battery disturbs me, otherwise it's always give good service.

I recently carried my eagle turbo in a backpack. I guess the flashlight's twist cap was being squeezed because when I pulled it out the entire unit was extremely hot. It always bugged me that sideways pressure on the cap could activate the light. Anyway now the light is inconsistent in terms of cap and side switch activation. Sometimes it works. Sometimes it has to be tapped against my palm. The light itself can be very dim too.

I'm not sure what part failed. Battery? Chip? Switches? Do I need an authorization code to send it in?

We do have a clicky tailcap with the tail button recessed. this tail switch will be not accidentally activated. We have limited lifetime warranty on the light, one year warranty on the battery and charger, you can send it for repair. we don't require authorization code

Is there any system to repair nautical lights ?

Please let me know. Thanks in advance.