Ideal for viewing hard-to-reach areas on your truck, this pocket-sized inspection light from Philips features six LEDs to give extra brightness. About the same size as a pen, the light can be easily stored in the pocket of your overalls. It has a single lamp at the top end so that it can function as a torch, and has been drop tested from 1.5 metres without damage. It’s also waterproof, and will last for up to 11 hours of continuous use. Available at most car accessories suppliers, the Philips penlight retails for £21.99.