With a bright 500-lumen beam and amber side lights for safety, the Light & Motion Rando Responder 500 Bike Light will make your after-dark ride safer and more enjoyable. The light's 20° spot beam pierces the darkness with smooth, even light, thanks to the micro-peened reflector. Choose from three brightness levels plus a pulse mode. The built-in battery recharges in five hours and delivers runtimes ranging from three to six hours, depending on brightness levels used. Don't panic if you're caught in a sudden shower—the Rando Responder 500 is IP67-rated waterproof. It fits any 1.25" clamp or holder, and makes a nice handheld light, too.

500/250/125 Lumens    Amber Side Lights for Safety    Six Hours Max Runtime    20° Spot Beam    IP67 Waterproof    Fits 1.25" Clamps    Micro-Peened Reflector for Smooth Beam

• Three brightness settings from 125 to 500 lumens and 125-lumen flashing mode

• Runtimes range from three to six hours

• Amber side lights for added safety

• Fits clamps and holders up to 1.25"

• One-touch high-medium toggle

• Digital display shows remaining battery power

• Single push-button switch for on/off and brightness level

• IP67-rated weather resistant

• Runs on one built-in rechargeable battery

Related Questions and Answers

Q: 1. Will this work TTL with my Nikon D850?

A: Yep, Just make sure you use the Profoto AirTTL-N

Q: 2. How do you know what stand is compatible for this light?

A: You can use any light stand with a 5/8 stud. Matthews makes a nice one https://bhpho.to/2Xky1AU.

Q: 3. Does HSS work over the entire power range or is it limited?

A: Not currently.

Q: 4. Does anyone make a fully functional universal remote for this ProFotoB1 X 500 AirTTL so that I don't need to buy one for every camera brand that I might use?

A: The Profoto Air Remote Transceiver, B&H # PRAR • MFR # 901031, would be a universal remote compatible for use with the Profoto B1X 500 AirTTL 1-Light To-Go Kit for cameras with a standard ISO hot shoe for MANUAL triggering ONLY. As it only has a single center pin, it will work with most all cameras, but will NOT offer TTL automatic flash output or High Speed Sync capabilities. While you may use third-party wireless radio remotes with the Profoto B1X 500 AirTTL 1-Light To-Go Kit unit via their 1/8" (3.5mm) miniphone sync input, there are no remotes other than the official Profoto radio remotes that will offer full functionality such as manual/TTL flash output control, turning groups on/off, or wireless control of the modeling lamp. These features are not possible with third-party remotes.

Q: 5. What is the length of the power cord on the D2 Monolight?

A: Nominally 16 feet, the same as the D1 power cord.

Q: 6. can u mount traditional profoto accessories onto this similar to the standard pro heads?

A: Yes these use the standard Profoto mount and can hold the same modifiers a Pro head could.

Q: 7. Will the profoto D2 fire in HHS (1/8000 sec) with a sync cable instead of using the air remote?

A: Unfortunately, HSS can only be utilized with the Profoto Air TTL remotes which are camera specific.

Q: 8. what remote is available for sony a7rii users and this system before the air remote is released?

A: Besides the Profoto Air Remote TTL-S for Sony B&H # PRARTTLS, which will give you TTL control from your A7R II, there is also the Profoto Air Remote Transceiver B&H # PRAR, which allows for manual control of the power output and allows you to trigger the D2 heads wirelessly. An image is shown below.

Q: 9. I have been using 4 Canon speedlites with the canon wireless system for mobile work but recently found the need to use two more substantial strobes. Can these be triggered (with and without high speed sync) while the camera has the canon wireless transmitter on the hot shoe to control the speedlites?

A: Yes. Just set the D2 to slave mode and it will fire when it sees the flash. This is a line of sight trigger method and isn't always successful. make sure you test it out.

Q: 10. Is there an adaptor to use Elinchrom modifiers?

A: The Elinchrom Profoto Adapter - Profoto Head to Elinchrom Accessories, B&H # ELPA is a suitable product. https://bhpho.to/2T6Rum0