the picture is too large and covers the description. What's the input voltage?

Hello,Drive Voltage(V) is 30-34V, input voltage is 110-240V.

Is it dimmable? If so, which driver do you recommend?

Yes it is Dimmable. I just got one in today and inmediatelly put powered it with my programable power supply as follows. Plus and minus rails with 0 Volts to start with. Once there I began to increase the Voltage 1 volt higher on each step while looking at power comsumption. At 26 Volts nothing, at 27 volts light came on, dim and low power compsumption, at 27 it was brigh already, at 28 volts was way too bright for me and the power compsuption was 28 watts. It didnt even get warm so I did not even come close to half its power rating. I did this just by increasing the voltage. So for those who said this is NOT dimmable other than with Pulse width modulation, you could not be more wrong. In fact each bare LED I have tested, has been dimmable. Sometimes within one two two volts but dimmable never the less. Please pay attention to the word "BARE". Some of my lightbulbs are not dimmable because the electronics used to drive the LEDs do not allow it. The Bare LEDs I have come accross, all have been dimmable without PWM.. You just need to use precise voltage adjustments. I am talking millivolts of difference you can dimm the LEDs very nicely from 0 to full light and usually around 80% bellow its their rating, LEDs produce about 95% of their maximum output. Want to save energy? drive them to 90% of their voltage Rating and add a on and off frequency of 60 Hertz. The LEDs will be blinking but our eye persistance will not see it. We only see an LED that is Full ON. Just like the old CRT TV's. They were blinking at evry slower rate and we never saw it.

Making a high power flashlight

I built a flounder light. Attached this light to angle aluminum, created dam surrounding light and incased it in bar top epoxy so it is Submersible in water. I even put several heat sinks behind it. This light takes ALOT of heat exchange to keep functioning. Even with the heat sinks out of water as light I think it would burn itself out, I only run it For less than a couple of minutes if that out of total submersion.

WRT (with respect to) the driver circuit; Is it more critical to monitor forward current, or voltage?

Its forward current is 3500mA. And it is more critical to monitor forward voltage.

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100W Chip Cool White Bulb High Power Energy Saving Lamp Chip

100W Chip Cool White Bulb High Power Energy Saving Lamp Chip

Product ID: 390880622

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Details

Brand
L LOHAS LED
Light type
LED
Special features
Durable Easy
Wattage
100.00
Bulb shape/size
B17

⚡100W high power output

🌐140° wide viewing angle

💡8000-9000 lumens ultra-bright

Description

💡 Illuminate your world with power and precision — don’t get left in the dark!

WIDE ANGLE ILLUMINATION - 140° viewing angle ensures expansive light coverage without hotspots.
ENERGY SAVING INNOVATION - High luminous efficacy reduces power consumption while maximizing output—smart lighting for smart professionals.
POWER PACKED PERFORMANCE - 100W chip delivers intense, energy-efficient brightness that outshines the rest.
BRILLIANT COOL WHITE GLOW - 6000-6500K color temperature for crisp, modern lighting that energizes any space.
COMPACT LIGHTWEIGHT DESIGN - Slim 50x55mm size fits seamlessly into diverse fixtures, perfect for sleek setups.

This 100W Cool White LED chip offers a powerful 8000-9000 lumen output with a crisp 6000-6500K color temperature and a broad 140° beam angle. Compact and energy-efficient, it’s designed for high-performance lighting applications, delivering bright, cool illumination while saving energy.

Specifications

Product Dimensions	5 x 5 x 0.2 cm; 0.28 g
Item Weight	0.01 Ounces
Specific uses	Fishing
Finish types	Painted
Batteries required	No
Included components	Light

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