As the days start to become shorter it's inevitable that our commutes, training runs and evening races are going to require some good old artificial light (no matter how many carrots you've eaten). If you want to continue to enjoy those summer routes then make sure you choose a running specific head torch.

Running head torches require a different set up to that of a hiking head torch. For example one of the main differences, is the location of the battery pack. Generally, running head torches will have the battery on the rear, that way you'll get a more secure and less bouncy fit.

You'll also need to factor in the brightness of the light, this is normally measured in lumens. From my experience:

• 10 lumens is good enough for close-up stuff (reading a map). 
• 100 lumens is the minimum I'd use for running, but only when the surface is nice and even
• 150 lumens for when the terrain is off road and a bit lumpier (the more remote you are, the darker it will be and the brighter the head torch you’ll need).  
• 300 lumens perfect for those trickier, remote off road runs where navigation is important. 

Then there's the battery life. It's important to know how long you'll be out on your run and if the batteries will last the duration. Some head torches use traditional batteries and others rechargeable, both have there benefits. Using traditional batteries means you can always carry spares without fear of being left in the dark. USB charging is standard for rechargeable batteries which means you can recharge them pretty much anywhere (cars, solar panels, battery packs). Much better value than having to constantly replace.

Also look out for the waterproof rating. You'll find that ratings are from IP0 (no protection) all the way to IP8 (can be submerged). You'll find an IP rating of 4 is ideal for running in the rain.

So first up we have the Kalenji On Night 210 Head Torch. Here's the features:

• 3 light modes, eco (45 lumens), high (100 lumens) and flashing
• Takes 3 x AAA batteries
• 30 hours battery life in eco, 10 hour in high
• Beam can be angled to suit
• Uses two adjustable straps (side and top) to keep it stable when worn. It even fits well without the top strap
• IPX4 waterproof rating, perfect for rainy conditions
• A lightweight 99 grams

Next up is the Kalenji On Night 710 Head Torch:

• 4 light modes, eco (45 lumens), low (120 lumens), high (300 lumens) and flashing
• Rechargeable battery pack via micro USB cable.
• 12 hours battery life in eco, 6 hours in low and 3 hours in high
• Battery charge indicator so you know if your'e running low.
• Beam can be angled to suit
• IPX4 waterproof rating, suitable for rainy conditions
• 120 grams in weight

For more information, products and reviews head on over to Decathlon's website.